CATALOGUE OF DEDUCED FROM THE OBSERVATIONS OF STEPHEN GROOMBRIDGE, ESQ. F.R.S. S.R.A. NAP. FELLOW OF THE ROYAL ASTRONOMICAL SOCIETY OF LONDON, &c. REDUCED TO JANUARY 1, 1810. EDITED BY GEORGE BIDDELL AIRY, ESQ. A.M. ASTRONOMER ROYAL. PRINTED, AT THE PUBLIC EXPENSE, BY ORDER OF THE LORDS COMMISSIONERS OF THE ADMIRALTY. LONDON: JOHN MURRAY, ALBEMARLE STREET. M.DCCC.XXXVIII. :" ASTRONOMY DEPT, LONDON : PRINTED BY JAMES MOVES, CASTLE STREET, LEICESTER SQUARE. PREFACE. IN laying before the Public Mr. Groombridge's Catalogue of Circumpolar Stars, I think it necessary to state the most important points of its history, so far as I have the means of giving them correctly ; and, in particular, to mention the circumstances which have caused me to appear as Editor of the work. Mr. Groombridge's observations, as recorded in his Transit and Circle Books, commenced in the month of June in the year 1806. The observations for some time appear to have been directed, in a great measure, to the formation of his Table of Refractions, published in the Philosophical Transactions for 1810 and 1814. After 1806, however, he applied himself to the observations necessary for the formation of a Catalogue of Circumpolar Stars, with an assiduity and regularity which would be most honourable to any established observatory. The number of observations made between 1806 and 1817 is (on a rough computation from the observing books) not fewer than 24,000 transits, and 26,000 observations of zenith distance. The reductions depending on clock error, index error, and instrumental error of all kinds, appear to have been made entirely by Mr. Groombridge himself; and about one-half of the reductions to mean places appear to have been made by him. When it is considered that the prime of his life had been actively employed in commercial industry, that these observations and computations were the laborious amusement of advanced age,* it will, I think, be allowed, that the work is one of the greatest which the long-deferred leisure of a private individual has ever produced. Mr. Groombridge, as I have heard from his friends, was extremely anxious for the speedy reduction and publication of his Catalogue. It was, probably, from this motive that he applied to the Board of Longitude for assistance in completing the computations.f The assistance applied for (I know not whether the hire of two computers, or the general care of the work) was granted ; but how far the persons employed were under the direction of Dr. Young, secretary to the Board of Longi- tude, or how far they were under the active superintendance of Mr. Groombridge, * Mr. Groombridge was in his fifty-second year at the commencement of these observations, f The minutes of the Board of Longitude, subsequent to the year 1821, are lost. The application alluded to was not made before 1 822 ; but I cannot state the time more precisely. 701084 IV PREFACE. I cannot with certainty state. It appears that Mr. Henry Jenkins, then principal computer of the Nautical Almanac, and Mr. Thomas Glanville Taylor, late assistant at the Royal Observatory, Greenwich, and now director of the East India Company's Observatory at Madras, had a part of these computations. I am, however, unable to say whether any other persons were employed, or to what time those whom I have mentioned continued to labour on the reductions. After the death of Dr. Young (in the spring of 1829), and the subsequent departure of Mr. T. G. Taylor for India, it became necessary to appoint a new superintendant of the computations ; and Mr. Pond, apparently in his official character as Astronomer Royal, nominated Mr. Henry Taylor, brother of Mr. T. G. Taylor above mentioned. The calculations, it appears, were first put in his hands about June, 1830. Computers were employed by Mr. H. Taylor; the reductions were completed ; the Catalogue in every respect prepared for press ; and, after the necessary sanction from the Board of Admiralty, the Catalogue and Introduction were completely printed at the expense of the Government. Before publication, copies, in the hands of the scientific officers of the Admiralty, were exhibited to some gentlemen, whose opinion of the work it was thought desirable to learn. It was thought by these persons that some alterations might, with advantage, be made in the Introduction. To give any opinion on the Catalogue itself, without a laborious comparison with the original books, was of course impossible ; all that could be said was, that its form was unobjectionable. An offer was made by the Rev. Richard Sheepshanks to assist in remodelling the Introduction ; and, the observing books being placed in his hands, it was accordingly re-arranged and re- written, in conformity with his proposition. It appears, however, that some altera- tion was made in the Introduction by Mr. H. Taylor, after it had left Mr. Sheepshanks' hands. This Introduction was set up in type. These transactions occurred in the autumn of 1832. Mr. Groombridge's death took place on March 30, 1832. In the Annual Report of the Council of the Royal Astronomical Society (read Feb. 8, 1833), an obituary (as usual) was drawn up, in which allusion was made to the labours of Mr. Groom- bridge, and a general statement was made as to the degree to which Mr. Groom- bridge himself had carried the reductions. Mr. H. Taylor considered himself aggrieved by this statement, and addressed a letter to that effect (dated April 11, 1833) to the President and Council of the Society. Mr. Sheepshanks, who was the author of the obituary alluded to, and who had acquired considerable familiarity with the system of books, proceeded with the examination necessary for vindicating, to the President and Council of the Society, the correctness of his account. In the course of this examination he was led by degrees to the conclusion, that the Catalogue, as printed, was not fit for publication ; and this opinion was expressed to PREFACE. V the Hydrographer, Capt. Beaufort. After some correspondence, the question as to suppressing the printed Catalogue entirely was referred by the Lords Commissioners of the Admiralty to Mr. Francis Baily and myself, and notice to this effect was transmitted to Mr. Sheepshanks and to Mr. H. Taylor. The books were placed in our hands, and explanations of the general arrangement, and statements of particular points, were furnished by Mr. Sheepshanks : Mr. Taylor declined to attend. After an investigation, attended with considerable labour, it was decided by Mr. Baily and myself, not only that the Catalogue was erroneous, but also that the errors were of such a nature that no system of cancelling or errata could remove them ; and that the work ought to be suppressed. In conformity with this decision, no further step was taken by the Board of Admiralty for the publication. This report was made about the termination of January, 1834. In this state of affairs, the Board of Admiralty desired my opinion, as to the steps which it might be advisable to take for completing the publication, the probable expense, and the selection of a superintendant. In reply, I expressed my belief that the great mass of work was well done, and that the expense of examining and arranging in a proper form would not be very great ; but I stated that I could not, at the moment, fix upon any competent person who was at leisure to undertake the superintendance. I offered, however, to charge myself with the superintendance, gratuitously, as soon as I should have leisure, if the Board should be willing to sanction the moderate expense which I contemplated. The Lords of the Admiralty were pleased to accept this offer ; and the books, c. were immediately transferred to me. The delay which has since taken place has arisen partly from the accumu- lation of business, produced by two severe illnesses, at the end of 1833 and the end of 1836, and partly from my unsettled state of residence. Much, however, has de- pended on the nature of the work itself. To go through the whole of the com- putations for such a Catalogue, was wholly out of the question. It was necessary, therefore, for me to satisfy myself with verifying the whole by chosen specimens of every particular part ; and, whenever, either from Mr. Sheepshanks' examination, or from my own, an error of a particular kind was discovered, to institute a systematic and complete examination for the detection of similar errors. Thus it was wholly impossible, when engaged on one kind of examination, to predict what would next be requisite. These matters, as may be easily imagined, have given very great trouble personally to myself. I have, however, the satisfaction of believing that my labour has not been unsuccessful ; and I dismiss the Catalogue from my hands with the full confidence that, though not wholly free from errors (a thing which no person experienced in such affairs can hope for), it is affected with as few as other works of the same kind. In undertaking to prepare the Catalogue for the press, I reckoned confidently on Vi PREFACE, the assistance of Mr. Sheepshanks and Mr. Baily. On applying to them, I was not disappointed. On various matters relating to the computations, I received from them considerable assistance ; and the comparison with the nomenclature of other Catalogues, with various numerical corrections suggested by the comparison, were made almost entirely by them. I wish, however, to state that, though much assistance applying to the computations has been received from these gentlemen (which I most gratefully acknowledge), no part of the responsibility of calculations falls upon them, the whole of these having been made, examined, or adopted, under my direct superintendance. The early delays in the calculations, which have produced a twofold delay in the publication, have been attended with a consequence which I cannot but characterise as melancholy. Scarcely a single person originally concerned in the work now survives. Mr. Groombridge, the amiable partner of his domestic cares and his scientific anxieties, the artist who constructed his instrument, his neighbour and astronomical friend (the late Astronomer Royal), the secretary of the Board of Longitude, the principal computer at first employed, all are dead. And this circumstance throws a cloud of obscurity over much of Mr. Groombridge's labours. To procure in- formation as to the earlier stages of the observations and computations, will now be nearly impossible. And even with regard to the later parts, the distance of Mr. T. G. Taylor, and the nature of the transactions which have taken the work out of Mr. H. Taylor's hands, make it extremely difficult to obtain any sufficient account. Against these disadvantages I have struggled as well as I was able, assisted, in the first instance, by Mr. Sheepshanks' examinations, and afterwards by such hints as could be gathered from the manuscripts. And I shall consider myself richly repaid for my trouble, if I shall be judged to have contributed, even in a small degree, to do justice to the memory of Mr. Groombridge, and to place his labours in the light in which they ought to stand. G. B. AIRY. Royal Observatory, Greenwich, Nov. 22, 1837. INTRODUCTION. THE house occupied by Mr. Groombridge during the progress of his observations is situated on the south side of Blackheath, in the row of houses called Eliot Place, and is distinguishable from the other houses of the row by the circumstance of its being (at the present time, 1837,) the only one which has a gable-end turned towards the road. The observatory was a small building attached to the western side of the house. Its position, with regard to the Royal Observatory of Greenwich, is a little to the east of south ; the difference of latitude, by the geodetic measures of Mr. Groombridge and Mr. H. Taylor, being 35"*23, or 35"'37; and the difference of longitude, Sf 65 ; as stated by Mr. H. Taylor. The instrument employed was a transit-circle, constructed by Troughton. Of this admirable instrument, descriptions, illustrated by engravings, will be found in Rees's Cyclopaedia, article Circle, and in the second volume of Pearson's Introduction to Astronomy. From the former of these works, the following account is extracted, with no other alterations than those which the want of an engraving renders necessary here. " The circle, which is four feet in diameter, and formed principally of hollow cones, is framed upon a strong axis, three feet in length, and consists of two complete circles, fastened together by many braces of the shape of the letter X. The telescope, five feet long, and three inches and a half aperture, crosses the middle of the axis, and passes between the two circles, to the bodies of which it is attached. Each of the circles has a hoop, or edge-bar, at its back, to give it strength, and is further braced by many parts, which tend to unite the two together. There also passes through the axis another tube, at right angles to the telescope : this forms part of the plumb-line apparatus, to be described hereafter. The axis is supported at its extreme ends on the top of two stone piers, about five feet four inches high ; the pivots of the axis rest in angles formed in brass-work, which is cemented to the tops of the stones. The angle at one end is acted on by a screw, which gives it a very slow motion vertically, for the purpose of adjusting the axis to be horizontal ; and a similar screw, at the other end, gives a similar motion for bringing the plane of the circle into the meridian. The figure of the stone piers is prismatical, and their inner Vlll INTRODUCTION. surfaces, 27 inches apart, are parallel to each other, and perpendicular to the horizon. The circle is divided on both sides into degrees, and every 5'. Upon the ends of two strong horizontal bars, attached to the piers, are fixed four micrometer-microscopes, two on each side, exactly in the horizontal diameters of the circles : these subdivide the divisions of the limbs to single seconds, and are the indices by which the values of the observations are read off. Another microscope, in a vertical radius of the circle, passes through the lower part of one pier, and, from its situation, is supposed to be steadier than the other parts. It is useful for examining the accuracy of the di- visions, and for detecting small motions in the more exposed parts of the instru- ment. Upon the axis, half way between the centre and pivots, are soldered and turned two rings. Immediately below, there is cemented into the inner surfaces of the stones, an apparatus, which, by means of a spiral spring, enclosed in a tube or barrel, is made to push up a roller against those rings, so as to sustain almost the whole weight of the circle, and thereby to relieve the pivots of the axis and the angles from unnecessary pressure. " On the inner surface of one pier is fixed a frame, which supports the usual appa- ratus for quick and slow motion. This, in the east or west direction, is extremely pliable ; but, in the direction of the meridian, furnishes a stout resistance. It is easily got at when the observer is looking to north or south ; and in those cases where the milled heads are out of his reach, a jointed handle assists him very conve- niently. When the instrument is reversed, this apparatus engages with the opposite limb. A small stool is sometimes placed between the two piers, below the centre of the instrument. On its top is the water-vessel for the plummet to swing in : this vessel may be raised or depressed an inch or more, by a rack and pinion, to suit the length of the plumb-line. The telescope, being turned round to the horizontal position, brings the plumb-line tube, mentioned before, into a vertical one. The plumb-wire hangs from an angle at the upper end, against which it is drawn into close contact by the weight below, and is here considered as depending from a fixed point. At the lower end, the main tube is crossed at right angles by two smaller tubes, one of them parallel to the telescope, the other parallel to the axis. At one end of each is placed a luminous point, formed by a fine round hole in a brass pin, which is set in a diaphragm of mother-of-pearl : a lens in the same tube forms an image of the luminous point upon the plumb-line, in the axis of the main tube. These are viewed by eye-glasses in the opposite ends of the crossing tubes, by which the plumb-line is seen directly passing through the image of the luminous point, which appears like the disc of a small planet. The tube which is parallel to the telescope regards the axis, and that which is parallel to the axis regards the reading microscopes. By adjustments in the former, and reversing the position of the instrument, the axis may be set truly level ; and by similar adjustments in the latter, and the same means, the reading microscopes are brought to shew the true zenith INTRODUCTION. IX distance. It should have been mentioned, perhaps, sooner, that a small pincher takes hold of the lower end of the plumb-line, the weight of which is sufficient to pass the wire through the main tube, having a hook at the lower end, by which it is connected with the plummet. A cap screws into the lower end of the main tube, furnished with a bolt for securing the pincher, thereby preventing the plumb-line, when out of use, from being entangled or broken. By these means the plumb-line is always in its place, ready for use, and the parts of the instrument are verified thereby in a few minutes. " The mechanism of the eye-piece of the telescope is interesting, and in many respects new. The eye-glass, by touching a lever which is connected with a pinion, is carried along parallel to the axis, and readily set opposite any of the wires in observing a transit. This motion may in a moment be changed into a vertical one, while the upper and lower limbs of the sun or moon are brought in contact with the declination wires. At about half the mean diameter of the sun from the central horizontal wire, is a fixed wire on one side, and on the other side a movable one, all parallel. The latter is acted on by a micrometer screw, which marks the quantity of motion by a nice graduation, crossing the central wire a little way ; but in its proper direction measures about 40'. By these contrivances, while the right ascen- sion of the sun or moon is observed without the loss of a single contact, one limb may be brought to the fixed wire, and the movable wire set to the other limb, and the whole may be read off after the observation is finished. A spirit-level, half the length of the axis, hangs upon two pivots, which project from two cocks screwed fast to the axis : on these it turns, and by its gravity keeps the right side up, and thus shews the level of the axis in every position of the telescope. Another level hangs upon two pivots, which are attached to the eye-end of the telescope. This, on being brought to a horizontal position, will verify the adjustments of the micro- scopes and other parts more quickly than the plumb-line : it is not, however, so accurate. The axis is perforated, and by an illuminator, placed at a proper angle in the centre, the light of a lamp placed opposite one end of the axis is reflected to the eye, and shews the wires by night. The quantity of light is regulated by letting it pass through glasses differently coloured. Other parts (such as the circular plates at the object-ends of the microscopes, furnished with universal motion, for illuminating the divisions of the limbs), mostly common to all instruments, do not require par- ticular notice. The reversed adjustment and reversed observation are affected by carefully lifting the whole circle out of the angles of bearing, and returning it when the ends of the axis are reversed." To this account it is proper to add, that the circles were divided by Troughton, according to the method described by him in the Philosophical Transactions for 1809. There can be no doubt, I conceive, that the instrument, at the time of its erection, and for several years afterwards, was the finest in the world. b X INTRODUCTION. I am not able to state whether the figures upon the graduations proceeded in the order 1, 2, 3, .... 90, 1, 2, 3, &c. (four nineties proceeding in the same order), or whether they proceeded in the order 6, 5, 4, 3, 2, 1, 0, 1, 2, 3, &c. (four nineties alternately reversed in order). Neither can I state whether the micrometers of the microscopes had two graduations increasing in opposite direc- tions. I have not had an opportunity of inspecting the instrument in its present state ; and it is probable that, from the changes which have been made in it, no inference could be drawn as to its condition during Mr. Groombridge's use of it. The instrument is now in the possession of Sir James South. I have understood that the transit circle was adjusted by a meridian mark on the south wall of Greenwich Park ;* and, upon examining the wall, there may still be seen at 100 yards distance (nearly) from the nearest obtuse angle of the south- west corner of the park, the remains of a large patch of black paint, below which, in three places (in the same vertical) are marks of the insertion of some substance in the wall. The position appears to correspond well with the meridian of Mr. Groom- bridge's Observatory. I think it, therefore, extremely probable that this was the situation of the meridian mark. In some of the books (No. I. below) I find allusions to a southern mark ; but it was probably temporary, as I am assured that Mr. Groombridge had no fixed southern mark. The transit clock (according to the statement of Mr. H. Taylor) was made by Holmes of London. Its rate appears to have been subject to gradual changes of sensible amount ; but, in general, the change from day to day was small. Thus, in the period from 1806, June 11, to 1807, April 5, the clock's smallest daily gaining rate was O s< 22 on June 11, and its greatest rate + l s *52 on March 8. The pallets were then oiled. Then, from April 6 to December 13, the smallest rate was +0 S> 22 on April 19, and the greatest + l s *71, on December 13. The pallets were again oiled. Then, from 1807, Dec. 14, to 1808, October 1, the least rate is + O s '30 on January 22, and the greatest -\ 2 S -00 on October 1. The pallets were then oiled again. Each of these rates is deduced from a single star : the true inequality of rate was probably less. It is however, I think, sufficiently clear, that the principal part of this inequality depended upon the reduction of the arc of vibration from the increase of friction in the clock. No instance has caught my eye in which the change of rate from day to day (as shewn by a single star) exceeded s '50 ; and, in general, it is very much less. So far, therefore, as depends on the steadiness of the clock-rate, I conceive that the right ascensions may be considered as having the utmost practicable accuracy. * For the information of strangers, it may be necessary to state, that the higher or southern side of Greenwich Park is part of the same table-land which forms Blackheath ; and that the Royal Observatory in the centre of the park, is on the northern brow of this table-land, and Mr. Groombridge's house on its southern brow. INTRODUCTION. xi I shall now proceed to give a general account of the books and papers which have come into my hands. No. I. A thin folio, stitched, marked " Groombridge's Magnitudes." The water- mark of the paper is 1797. It contains an approximate general catalogue of 91 bright stars, described by the parts of their respective constellations ; a catalogue of 19 bright circumpolar stars, similarly described; a catalogue of 53 circumpolar stars, with some pencil computations from Hevelius, with Flamsteed's numbers and Bayer's characters (the places of all these are for 1800) ; and a catalogue of about 770 cir- cumpolar stars (for 1803), a very few of which are from Bode's great catalogue (the last 37 stars are not, like the rest, in the order of right ascension). The magnitudes of the stars are marked, and have, in many instances, been altered by Mr. Groom- bridge : and this book, therefore, has been considered as authority for his estimation of the magnitudes. Opposite the names of many of the stars (perhaps one third of the whole) are pencil marks ; the number of the marks corresponds, as far as I have examined, with the number of observations in right ascension in the Catalogue now published. The book also contains, Observations for the runs of the micrometer- microscopes ; Observations for Collimation in Declination (by once observing the north mark and the south mark with the illuminator west, then reversing the instru- ment, and making the same observations with the illuminator east) : there is no date to these observations, and I cannot find in the Zenith-distance book that the value of the error of collimation here obtained has ever been used ; Observations of the distance of the fixed wires, and of the value of the micrometer-screw ; and various astronomical memoranda not relating to the Catalogue. No. II. Twenty loose sheets of paper, water-mark 1806, headed, in Mr. Groom- bridge's hand-writing, " Stars for the Catalogue." The first part of it is a catalogue of about 560 circumpolar stars, in the order of right ascension, without separation of constellations, commencing with 36 Draconis, R.A. 18 h 12 m 41 s , and proceeding through the twenty-four hours to Her culls Bode 403, R.A. 17 h 58 m 35 s . The second part is headed, " Stars from Bode's Catalogue ;" and contains, arranged by constellations, the principal part of the stars of Bode's Catalogue, which are included in the zone to N.P.D. 50 or 51. A few of the stars are set down twice. The whole number is about 2200. Many of the stars of No. I. which have no pencil marks are included in No. II. Nearly the whole of the stars of No. II. have pencil marks corresponding to the number of observations : the magnitudes are also marked and corrected. Interlined are the small stars preceding and following the stars first written down, distinguished by the marks p and/: these also have pencil marks for the observations, and have the magnitudes written down. It is evident that Nos. I. and II. (but especially the latter) were Mr. Groombridge's working catalogue, or list of objects to be observed ; and that they were afterwards used as Xll INTRODUCTION. convenient places for the temporary registration of the number of observations made on each object, and of its magnitude. Of the stars in these lists, twenty-eight having the letter N, in red ink or in pencil, written opposite to their names in the lists, are omitted in observation ; and thirty-one without any peculiar mark are also omitted. No. III. The Transit Book. This is a large folio, ruled with seventy lines on each page, and containing, in the whole, 183 leaves nearly full of observations on both sides. The date of the first observation is 1806, June 11, and that of the last 1823, Feb. 26. Many of the later observations relate entirely to the determination of R.A. of planets. After 1816, June 12, there is a hiatus of observations of five months ; and here is written in pencil (not by Mr. Groombridge), " End of Cata- logue." This, however, is incorrect, as several important observations for the Catalogue were made in 1819. Besides the occasional notices of cleaning the clock, oiling its pallets, winding it up, or letting it run down, &c. the book contains the following remarks : " The axis of the instrument reversed" on 1806, Sept. 29 ; 1807, Jan. 12, Feb. 23, May 11, June 2, Sept. 19 ; 1808, May 2 ; 1809, Feb. 18, Nov. 26; 1810, Nov. 17 ; 1812, May 13 ; 1813, May 8 ; 1818, June 5 ; 1821, Jan. 12. 1808, Nov. 30. " Having struck and moved the axis in azimuth 1"'341, the correction of the error in R.A. is calculated for each star." The corrections are accordingly written in red ink by the side of the transits. 1810, May 31. " Henceforward the observations will be reduced by my new tables of aberration, precession, and nutation ; and the epoch will be 1st Jan. 1812." Up to this date the mean places were reduced to 1st Jan. 1807. A few after this time are reduced to 1807 ; but I believe that they are only stars which had also been observed before this time. The tables previously used were, I suppose, Maskelyne's. 1810, Oct. 18. " Henceforward the mean of the five wires will be reduced to the centre by an equation, the quantity whereof is ^ of an interval when the illumin- ator is east, + ^ when west." 1812, April 8. " Henceforward the Right Ascension of Dr. Maskelyne's 36 stars from the Catalogue 1805, corrected for the error in the Greenwich Transit." I presume that Dr. Maskelyne's first Catalogue had been used to this time. The Transit-wires were five in number. Observations, however, were seldom made on all the wires, except those of the stars used for correcting the clock. Thus, in a page, taken at hazard (1812, Sep. 11 and 12), of 70 transits, there are 4 on 1 wire only, 62 on 2 wires, none on 3 wires, none on 4 wires, 4 on 5 wires. These 4 were entirely clock-stars. The reduction of these broken transits must have been INTRODUCTION. Xlll a troublesome operation ; all traces of it are, however, lost, except in the latter part of the book, where there are many pencil-figures which seem to be the declination and the corresponding mean value of one interval of wires. With regard to the error of collimation with reference to transits (that is, the perpendicularity of the telescope to the axis of rotation), there is no information whatever. I presume that it was adjusted by means of the meridian mark. With regard to the Level Error, there is no distinct account ; but there are written with red ink in the margin of every page, and in general to every day, figures with the letter E or W, which I have no doubt shew the elevation of one end of the axis. Thus, 1806, June 11, has the marginal note '447 E; June 12 has -417 E; June 14 has '123 W. The quantity very rarely exceeds I'OOO ; and I am not aware that in any instance it amounts to 2-500. If these quantities are expressed in seconds of space, it is evident that the screws for adjustment were very frequently used. With regard to the Azimuthal Error, there is no information except that which is to be derived from the double transits of Polaris ; and this is satisfactory. The following are the only days of the first year on which double transits were obtained (with the middle wire only). I set down by the side of them the excess of the seconds at the lower passage over those at the upper passage, and the supposed level-error for the same time. 1806, June 12 + 13-0 417 E. 14 & 15 + 20-0 123 W, -876 E. 19 + 11-0 223 E. 23 + 4-0 107 E. July 17 + i-o . 244 W. Oct. 19 + 2-5 130 E. Nov. 5 + 2-0 079 E. 29 + 03 190 W. 1807, April 26 & 27 + 2-5 000, -068 E. From the order of these numbers, I think it most probable that the month of June 1806 was employed in settling the position of the meridian mark; and that as the last observation of June and that of July shewed that it required no sensible alteration, the instrument was afterwards adjusted by the mark thus fixed. The number of clock-stars observed on a single evening is usually three or four. The following extract will serve as a general specimen of the way of entering the observations and reductions ; which is followed without any alteration (except the omission of the numbers that appear to refer to the level, and the adoption of 1812 and 1818 by Mr. Groombridge, arid 1810 by Mr. H. Taylor, for epoch instead of 1807), from the beginning to the end of the book. XIV INTRODUCTION. 1809. Observed Right Ascension. Red. No. of days. Daily Rate. Apparent R.A. Mean R.A. Jan. 1, 1807. 1 2 3 4 5 Dec. 11. // a 6-4 h / /, 17 10 33-6 i-8 a . . a / // / // Free. Ib. . . 28-4 12 56-3 23-7 Fol. Ib. . . 11 45-03 .. 12 37-06 Centre. 31-4 4-3 18 29 36-8 9-5 41-4 36-68 1 0-00 30 28-77 52-09 Lyree. 53-2 29-1 20 34 4-6 40-0 15-6 4-50 1 + 0-10 34 56-51 -0 52-01 Cygni. 21 4 17-7 5 11-73 5 11-45 CepheiB91/ 6 54-6 .. 5-07 6 57-10 6 53-13 Do. B 97 p . . 7.4 35 47-8 47-98 36 40-01 36 33-97 Do. B 134 37 39-5 20-3 39-52 .. 38 31-55 38 25-46 Do. B 134/ 172W 38 59-3 .- 39 51-33 39 45-19 Do. B134jy . . 1-7 56 50-8 50-79 57 42-82 57 36-96 v 1 Do. . . 20-5 57 9-4 9-48 58 1-51 57 55-65 2 Do. 45-2 22 10 45-5 45-56 11 37-59 11 32-04 Do. B 198. 26 34-3 27 26-33 27 18-21 8 Lacertse. 28 43-8 23-5 43-69 29 35-72 29 28-05 9 Do. 34-6 32 7-5 7-43 32 59-46 32 51-12 12 Do. 36 56-4 37 48-43 37 42-84 CepheiB234j9. 38 42-4 39 34-43 39 28-72 Do. B 234. 39 54-6 .. .. 40 46-63 40 40-89 Do. B 234/. 46 20-3 47 12-33 47 7-77 Do. B 243. The number in the first column has already been alluded to. " Observed Right Ascension," in the language of Mr. Groombridge, signifies only " Observed clock time of Transit." The " Reduction " is the mean of the wires, referred by the proper intervals to the middle wire. The Apparent Right Ascensions of a Lyrae and a Cygni are not inferred from the observations, but are computed tabular quantities. By comparing these with their transits the apparent clock error is found : the mean of the clock errors from these and another star (a Andromedae) observed later in the evening, gives the clock correction 52 S -03, which is applied to all the transits, excepting those of the clock stars. In the column for the names of the stars, B is for Bode ; the letter p or/ denotes that the star is anonymous, but that it precedes or follows the star to whose name the p or/ is attached, generally passing in the same field of the telescope. When two or more anonymous stars precede or follow the same star, the letter JP or/ is doubled for the star which is second from the star of reference, trebled for that which is third from it, &c. The same column, it will be remarked, is used for inserting the clock errors INTRODUCTION. XV given by the clock stars, and the mean R.A. of other stars deduced from the observations. The latter of these, in general, are written with red ink. From the neatness and regularity with which the transits are entered, as well as from the occasional intermixture of other matter (as eclipses expressed in mean time ; observed right ascensions and polar distances of a comet, both expressed in arc, &c.), it is evident that this book cannot be considered as original, though, perhaps, very little removed from it. The original observations, I believe, were written on slates, or on small pieces of paper, now probably destroyed. No trace whatever of the calculations for completing the transits, computing the apparent right ascensions of the clock stars, or reducing the apparent places of the small stars to mean places (so far as that was done by Mr. Groombridge), exists among the papers in my hands ; nor even for the calculations of the latter class, which were performed by other persons, is there, in any instance, more than a few of the radical numbers. To this I shall again allude. The rude transits, the deduced transit over the middle wire, the number of days and daily rate, the clock errors, and the deduced apparent right ascensions of small stars and planets, from beginning to end, are entered in Mr. Groombridge's hand- writing. The mean R.A. are also in his handwriting as far as 181 1, March 16, where entries of mean R.A. commence in the handwriting, I believe, of Mr. T. G. Taylor. For a short time, however, Mr. Groombridge's entries still occupy the principal part of the column ; and they are to be found occasionally to the end of the book. With 1812, October 8, commence entries of mean R.A. in the handwriting, I believe, of Mr. H. Taylor. Mr. T. Taylor's are, however, the most numerous for some time afterwards. The epoch for Mr. H. Taylor's mean places is generally 1810. I have no reason to think that the computations made by Mr. Groombridge have undergone any revision since the termination of Mr. T. G. Taylor's superintendance. After carefully examining every part of the book, only two instances have been found in which alterations have been made by Mr. H. Taylor. The first of these is on the eleventh page of the observations, 1806, Oct. 19, where Mr. H. Taylor has erroneously changed the clock rate + 0'36 (formed by simple subtraction) to + 0'32. The second is an alteration of 10 s in a transit. Mr. T. G. Taylor has corrected twelve transits for errors (generally of 1 s ) arising in different ways. That no exten- sive examination had ever been made, I conceive to be certain, from the circumstance that, when the books came into my hands, I did, from the most cursory examination of the results, discover two days (1813, May 8, and 1815, Feb. 27) on which the clock corrections had been applied 1 s wrong to every transit, and many instances in which the reduction of the wires, the application of clock correction, or the reduc- tion from apparent to mean place, was, at least, 1 s wrong. The whole number of transits corrected, under my superintendance, for errors arising thus, is ninety-five, besides a great number of alterations in star corrections occasioned by erroneous XVI INTRODUCTION. assumption as to the side of the zenith. They are marked in the book with the initials G. B. A. or J. H. (Mr. John Hartnup having been employed by me on this examination.) No. IV. The Zenith Distance Book. This is a very large folio, water-mark 1804, ruled with seventy-two lines on each page, containing 188 leaves full of observations on both sides. (The last leaf is a loose sheet.) The date of the first and last observations is the same as for the transits ; but there is some difference between the objects observed on the same day, as recorded in the two books. The Transit Book contains many observations of clock-error stars, to which there are none corresponding in the Zenith Distance Book. The latter contains many observations of circumpolar stars, both above and below the pole, especially the latter, on occasions when the transit was not observed. The following are the principal notices in this book : 1806. June 11. Illuminator to the East; collimation, South + 18-54, North 18-54. (This cor- rection is applicable to the zenith distances.) June 27. Illuminator to the West ; collimation, South 18-54, North + 18-54. July 14. A new adjustment; illuminator to the East; collimation, South +17-15, North 17-15. Sept. 28. Illuminator to the West; collimation, South 17-15, North + 17-15. Dec. 29. A new collimation, South + 1-55, North 1-55. (These figures are marked out by a stroke with red ink.) 1807. Jan. 12. Illuminator to East; collimation, South 1-55, North + 1-55. Feb. 15. Illuminator to West; collimation, S. +, N. (no figures). May 11. Illuminator to East; collimation, S. +, N. (no figures). June 2. Illuminator to West; collimation, S. , N. + (no figures). Sept. 19. Illuminator to East; collimation, S. +, N. . 1808. May 4. Illuminator to West; collimation, S. , N. +. 1809. Feb. 22. Reverse the axis ; illuminator to East. July 20. The microscopes altered, the wires to move instead of the object-glass. (I presume this refers to the sliding-adjustment for coincidence of the place of the wires with the place where the image of the divisions is formed.) Nov. 26. Reverse the axis ; illuminator West. 1810. May 31. Henceforward the observations will be reduced by my new Tables of Refraction, Aberration, Precession, and Nutation ; and the epoch will be 1st January, 1812. Nov. 23. Reverse the axis ; illuminator East. 1811. May 26. Henceforward a gauged barometer by E. Troughton. 1812. May 13. Reverse the axis ; illuminator West. 1813. May 8. Reverse the axis; illuminator East. (Between this and the next, I cannot find mention of any reversion.) 1821. Jan. 12. Reverse the axis ; illuminator East. This list of reversions corresponds with that in the Transit Book, as far as they go (the nearest following day being set down by me), but neither appears to be complete. INTRODUCTION. XV11 The following Extract from the Zenith Distance Book will shew the way in which Mr. Groombridge recorded the observations. Day of the Month. Zenith Distance. N.W. s.w. N.E. S.E. Refraction. Zenith Distance Corrected. Baro- meter. Thermom. Mean. .Tan. 1, 1807- In. Out. 1809. Dec. 11. 74 25 10"3 10"2 // 10-0 10 : 8 / ti o / // 29-37 43-5 42 Sun 15 54-00 3 18-61 Q Upper Limb + 13 51-74 3 25-86 .. Lower Limb N + 2 39-94 Rev. 2-588 74 28 57-41 .. Centre s+ 59 1-4 0-9 1-1 1-2 0-98 58 56-11 /3 Draconis 58 54-59 3 12-0 12-1 12-3 12-2 0-05 3 6-18 y Draconis 2 55-90 12 50 40-8 41-7 41-4 41-6 12-98 12 51 0-37 * Lyrae 51 22-70 6-02 6 51 6-0 5-8 6-0 5-1 6-87 6 51 18-61 29-41 43 41 * Cygni 52 15-86 8 16 58-4 58-9 58-0 58-3 8-31 8 17 12-73 |do. 18 14-59 19 12 22-4 22-1 22-5 22-4 19-88 19 12 36-21 29-42 Cephei B 91 / 11 29-09 7 44 48-3 48-7 48-2 48-4 7-77 7 44 50-15 do. B97p 43 43-72 7 51 21-6 21-9 21-7 21-6 7-88 7 51 23-56 do. B97/ 50 17-13 4 49-0 48-8 49-0 48-4 0-08 4 42-86 do. B 134 3 32-52 3 50-4 50-0 50-5 50-1 0-06 3 56-33 do. B 134/ 5 6-88 12 38-6 38-9 38-8 38-7 0-20 12 44-97 do. B I34ff 13 55-73 7 26 4-0 4-3 3-9 4-2 7-46 7 26 5-54 42-5 39 v 1 do. 24 51-04 7 29 10-7 10-6 10-4 10-2 7-51 7 29 11-96 v 2 do. 27 57-46 13 43 2-2 2-1 2-0 2-3 13-96 13 43 10-09 do. B 198 41 53-12 2 9 2-7 2-6 2-4 2-1 2-15 2 9 10-62 . . 7 Lacertae 10 26-06 12 48 10-0 10-2 10-7 10-3 13-00 12 48 29-32 8 do. 49 42-82 53 33-6 33-4 33-2 33-0 0-89 53 40-21 9 do. 54 56-41 12 13 19-3 19-5 19-4 18-9 12-39 12 13 37-68 12 do. 14 51-75 21 52 19-0 19-7 19-3 19-0 22-98 21 52 36-21 42 Cephei B 234^ 51 16-08 21 57 49-5 49-6 49-3 49-7 23-08 21 58 6-58 do. B 234 56 46-33 22 5 22-5 22-2 22-6 22-3 23-23 22 5 39-61 do. B 234 / 4 19-26 27 53 33-4 32-8 32-8 33-5 30-29 27 53 57-39 do. B 243 52 36-33 The readings set down for the sun are the distances of the two fixed wires from the central wire (described in the account of the instrument), with the micrometer revolutions and value in arc for the measure of the distance of one limb of the sun from one fixed wire (the other limb having been brought to the other fixed wire). The readings for the stars marked p and/, shew that they are generally stars which passed in the field of view when the telescope was set for the star to which they are referred. The number in the first column is the index error, deduced, probably, c XV111 INTRODUCTION. from the first five stars. The algebraic sign above it denotes the way in which it is to be applied to the numerical value of the zenith distance, given by the mean of microscopes. The day, the index error set down in the column for the day, the degrees and minutes, the seconds for the four microscopes, the barometer and thermometers, and the refractions, are entirely in Mr. Groombridge's hand-writing, from beginning to end. The true zenith distances are also entirely in his hand-writing, excepting only about fifty-eight in the beginning of the year 1816. The mean zenith distances are entirely in his hand-writing to 1811, March 1, when entries commence (at first sparingly) in the hand-writing of Mr. T. G. Taylor. Mr. H. Taylor's entries of mean zenith distance commence in 1812, October 9. The following points appear to be important in estimating the probable liability to error in these deductions. The readings of the four microscopes, as set down in the earlier parts of the book, have that amount of discordance which may usually be expected with the most careful observations. After the middle of 1807, however, the accordance between the microscopes becomes such as never was attained with any instruments. To explain this, I have been informed by Colonel Colby, R. E. (who was well acquainted with Mr. Groombridge's habits of computation, &c.), as well as by other persons, that it was Mr. Groombridge's custom to alter the microscope readings in such a manner as to preserve their sum unaltered. Mr. Groombridge, I believe, prided himself on his readiness at performing calculations mentally ; and trusted entirely to his power of altering the figures in the way which I have described, without introducing any error. It can, however, scarcely be doubted, that errors have, in some instances, been thus produced in the mean. The next point is, that there is no recorded difference in the nature of the readings for objects on different sides of the zenith. Now, the least consideration of the method of using the micrometer-microscope will shew that, either there must have been two readings on the micrometer-heads, increasing in opposite directions (which would bring a constant risk of mistake), or, if there were only one reading, its complement must have been taken mentally for stars on one side of the zenith (which would be very liable to error). I am inclined to believe that the latter was the method employed, as I find the microscopes, in some places, altered throughout by 10"; (for instance, December 9, 1810, Cephei B 289). Whichever method was used, the chance of error, to most observers, would have been considerable. The third point is, that the zenith distance only is given, the side of the zenith being in no way mentioned, except in a very few instances where the star passes very near the zenith. It is true that the side of the zenith (as understood by Mr. Groombridge) may be inferred from his true zenith distance, by subtracting the mean of the microscopes and the refraction, and thus discovering how the index error INTRODUCTION. XIX is applied by him. But where a star passes very near to the zenith, there is a possi- bility that Mr. Groombridge may himself have mistaken the side. And even where he has not, he may have committed an error in applying the index correction. There can be little donbt that both these circumstances have occurred. Several apparent zenith distances have been altered by Mr. H. Taylor, Mr. Groombridge's figures being totally erased (I suppose under the immediate inspection of Mr. Groombridge) ; and I have myself found instances in which the error was indubitable. I will here collect all the observations in which the zenith distance is less than 1' ; the errors in the determination of the side of the zenith being more likely to escape detection in such observations than in those at a greater distance. Persei Bode 51, No. 525, observed 1810, Jan. 14 and 15, Feb. 4, Nov. 17, 25, and 30 ; assumed to be north of the zenith. Persei Bode 114, No. 611, observed 1809, Dec. 11 ; 1810, Jan. 14 and 15, Nov. 17, 25, and 30; the apparent place assumed to be north ; the mean place, 1807, south. Camelopardi Bode 22 p, No. 819, observed 1811, Feb. 1, 3, 19, 22; assumed to be north. Camelopardi Bode 22, No. 821, observed 1811, Jan. 18, 19, and 27, Feb. 1 and 3; assumed to be north. Draconis Bode 170, No. 2559, observed 1810, Aug. 31, Sept. 2, 8, 9, 10, and 21 ; assumed to be south. Lacertee Bode 23, No. 3722, observed 1810, Sept. 8 ; 1811, Oct. 6, 17, and 19 ; assumed to be south in the two former observations, and north in the two latter. Lacertse Bode 42, No. 3793, observed 1810, Sept. 9 and 26, Oct. 4, 13, and 30; assumed to be south. For the third and fourth of these stars, as well as for Camelopardi Bode 22 /, No. 830, the original figures (except the microscope readings) have been completely erased, and new ones written by Mr. H. Taylor, in every observation. The last- mentioned star is observed, on 1811, Jan. 19 and 27, Feb. 1 and 3. The following statement will shew that no distinct examination of Mr. Groom- bridge's computations has been made by the subsequent computers. In five instances (besides those above mentioned) the refraction, or the apparent zenith distance, has been altered (by erasure) by Mr. H. Taylor. I should suppose that these erasures were made under Mr. Groombridge's inspection. They all occur in the first half-year. In two instances, 1806, July 14 and Oct. 5, the index error has been altered by Mr. H. Taylor ; but the altered index error has not been used in computing the observations. I have reason to think that the alteration was made after the Catalogue was printed. One observation is altered I' 10". Many erasures are made, with corrections by Mr. Groombridge : to some of these the word error is written by Mr. H. Taylor ; I know not whether to suggest the error to Mr. Groom- bridge, or to express a doubt of his correction. Ten alterations were made by Mr. T. Taylor, of which eight were for errors as to the side of the zenith, and two for errors in minutes and tens of seconds. Eighty-six alterations have been made under my direction (besides alterations of minutes and tens of seconds), of which twenty-six relate to errors in the apparent place, and the remainder to independent errors in the deduced mean places. The XX INTRODUCTION. greater part of these are occasioned by errors with regard to the side of the zenith. No systematic examination of the application of index error was made for the detection of these. I have only to remark further upon the way in which I conceive Mr. Groombridge to have proceeded in the reduction of his observations of zenith distance. In the first part of the book, there is given (written across the page) an error of collimation, or error of position of the wire with respect to the divisions of the circles, as mentioned above. Besides this, there are in the margin figures written in red ink, with the indication, N. +, S. , or N. , S. +. This system continues to 1806, Dec. 28, after which no error of collimation is written across the page (except in one instance, of which no use is made), but figures, or the sum of two sets of figures, are put down in the margin to the end of the book. Now, upon examination, it is found that, in the first part of the book, the apparent zenith distance is formed by using the error of collimation with the mean of the microscopes and the refraction ; and that, in deducing the mean zenith distance from the apparent zenith distance, the number expressed in red-ink figures is combined with the star corrections. In the rest of the book, the red-ink figures are used to form the apparent place, and the star corrections only to form the mean place. Upon examining the red-ink figures, it is found that, in both parts of the book, they are index errors, determined by comparing the resulting places of certain stars with their places in some stage of a Standard Catalogue (to be described hereafter, No. V.). Thus, the whole of the results in the book are dependent on a Standard Catalogue. Moreover, there exists among Mr. Groombridge's papers one headed " Observed Zenith Distances of Stars for Refraction." Upon examination, it appears that these are the apparent zenith distances which were to be reduced to mean zenith distances, in order to supply the data for the correction of refraction in the paper printed in the Philosophical Transactions, 1810 (the stars being the same, and the number of observations generally the same) ; and these apparent zenith distances are taken from the Zenith Distance Book, beginning with the very first day, and extending for Polaris S.P., and probably for other stars, as far as the middle of 1808, and (in the first part of the book) corrected by ap- plying the red-ink figures. Thus it appears that even the data for refraction were obtained by the use of the standard catalogue. And, on further examining the standard catalogue, it is found that the first, and almost illegible value, for the standard stars, is that which is used to determine the index errors, for two or three years at least ; and that the second value is identical with the mean zenith distance (as far as the stars are the same) in the memoir, Philosophical Transactions, 1810. The whole of the discoverable process is, therefore, one of reliance on a successively corrected standard Catalogue ; yet the investigations of refraction, &c., necessarily imply reference to independent index errors obtained INTRODUCTION. XXI without assuming the correctness of any star-places. I imagine Mr. Groombridge's method, therefore, to have been the following : First, the relation of the position of the wire to the zero of the divisions, was found, by observation of a terrestrial mark in reversed positions of the instrument (of this there exist four separate deter- minations). Next, the relation of the position of the microscopes to the zenith, was found by observations of the plumb-line in reversed positions of the instrument (of this there exists no trace, but, as it was the only way of referring to the direction of gravity, it must have been used). Thirdly, as there is no reason to suppose that any observations were made, except those in the Zenith Distance Book, these observa- tions must have been reduced to some extent (perhaps to the month of July 1807, as observations of all the stars whose places are altered in the catalogue occur before that time) by the application of the two corrections just mentioned ; and a series of strictly independent zenith distances must have been thus obtained, which were reduced with Bradley's altered refractions (the first table alluded to by Mr. Groom- bridge, Philosophical Transactions, 1810, as used by him before making a correction from observations), and from which the mean places of the first stage of the Standard Catalogue were deduced. Fourthly, that these mean places were used, with the same table of refractions, to form the index errors which still remain in the books, and thus to form a new set of zenith distances from observations extended over a longer period, which were used both for improving the Standard Catalogue (still using the same refractions) and for correcting the refractions ; after which another alteration of the Standard Catalogue would be necessary. This process is strictly legitimate ; preserving the general mean of former determinations, while the indi- vidual determinations are altered. It is precisely the same as that commonly used for correcting the right ascensions of fundamental stars. The mean zenith distance appears in all cases to have been formed from the apparent zenith distance, by corrections equivalent to those given by Groombridge's Tables, Astro. Soc. Mem. Vol. I. No. V. The Standard Catalogue. This is a single leaf, without date on the watermark, headed " Zenith Distance of Stars, 1 Jan. 1807, for Coll." and containing the minutes and seconds of zenith distance for 151 stars, in the order neither of right ascension nor of polar distance. Polaris is the only one whose place below the pole is given ; but, on the south side, there are many stars at considerable zenith distances, as Fomalhaut, Sirius, a Librae, a Capricorni, Spica, a Hydrse. The stars which are not circumpolar appear to have been added long after the others, and their seconds are not altered, as those of the circumpolar stars. For about 40 of the last-mentioned class, the seconds have been written down at least three times, and for Polaris five times. The first value is with difficulty legible ; but where it can be ascertained, it is evidently the number that has been used in computing the index error in 1806 and 1807. The second value is written over this in strong XX11 INTRODUCTION. characters ; it is in every instance (as far as they go), except for Polaris, the same as the number used for the zenith distance at upper passage, in the table attached to the paper on refraction, Phil. Trans. 1810. Of the fifty stars in that paper, twelve are wanting in this catalogue. The third is written in red ink by the side ; it is (as I shall mention) the value from which one of the values of polar distance is afterwards formed. The successive changes of these numbers I conceive to have arisen from the changes in the tables of refraction, as well as from the repeated and renewed discussion of the observations, already alluded to. No. VI. The Mean Sheets. These are thirty-eight sheets of foolscap (water- mark of the first 1824), for the most part completely filled on both sides with collections of the separate results, as to the mean right ascension and mean zenith distance of each star; with the mean of all the separate results. The first five sheets, and parts of two others, are in Mr. Groombridge's handwriting ; the others in the writing of Mr. T. G. Taylor and Mr. H. Taylor. The arrangement of the results is different in different parts ; but the only points worthy of remark here are the following. First, the results for the principal stars, and all those which in the Book of Results are included in catalogue A, do not appear here ; the sheets com- mencing with the first star of catalogue B. Secondly, the mean result of mean right ascensions of many of the stars entered in Mr. Groombridge's handwriting, especially of those near the pole), has a correction applied to it of which no account is given, but which may, probably, be due to the supposed error of level, to which I have alluded under No. III. The agreement ot the separate results in right ascension is generally very close. In the polar distances there is sometimes a dis- cordance of 8" ; but I think it extremely probable that in these cases an error of 10" has been produced from one of the causes mentioned under No. IV. In one or two instances I have thought myself justified in making an alteration of 10 V . No. VII. The Book of Polar Distances. An old book of Mr. Groombridge's ; the entries relating to the Catalogue are entirely in the handwriting of Mr. T. G. Taylor and Mr. H. Taylor. They consist of the days of observation of each star, the corresponding reductions (both in right ascension and in zenith distance) from apparent to mean place, the zenith distance copied out of the mean sheets, the polar distance formed by applying the colatitude 38 31' 57"'82, and the elements for computing the reductions by means of Mr. Groombridge's tables ; but no part of the computation of reductions. The first star is Bootis Bode 277, of which the first observation is on 1812, June 6; this is also the first star entered in the mean sheets by Mr. H. Taylor. As the original book was not sufficiently large, a thin paper book, containing the completion of the matter, is placed in it. No. VIII. The Book of Results. A thin folio, with eleven loose leaves of larger size inserted in the end. The watermark of the first part is 1817. Its contents are the following : INTRODUCTION. XX111 A catalogue of 52 stars, arranged in the order of polar distance (the first being Polaris, and the last a Lyrae), with the results and number of observations in two lines for each star, as reduced to 1307 and 1812. The places for 1807 have been first written in black ink ; and these places correspond to the last-corrected, or red- ink zenith distances, in the Standard Catalogue (No. V.), with the application of colatitude 38 31' 57 V> 82. The seconds of polar distance are then corrected in red-ink, and these are the numbers tabulated in a following catalogue. I can give no account of the way of obtaining the correction. A catalogue of 69 stars, similar to the former, and similarly arranged ; beginning with Ursae Minoris, Bode 4, and ending with 77 Aurigae. A catalogue of about 800 stars similarly arranged, beginning with Ursae Minoris, Bode 6, and ending with 65 Aurigse. The whole are reduced to 1807 ; none to 1812 ; two or three to 1818. The seconds of N.P.D. of the whole (except those reduced to 1818) are altered in red-ink. The first catalogue (A) of about 900 stars, arranged in order of right ascension, and reduced to January 0, 1807. It contains the number of observations in R.A., the mean R.A. 1807, the mean R.A. 1810, and the same particulars for N.P.D. Of the calculations intervening between the Observing Books and the Catalogue A, as here exhibited, no trace (as has been already mentioned) remains. The whole is in Mr. Groombridge's handwriting. On comparing it with the preceding cata- logues, it appears that the observations reduced to 1807, and corrected in red- ink, are alone used; those of 1812 (generally more numerous) being neglected. Whether intention or accident may have caused this omission, I have thought it necessary in the printed catalogue to exhibit the results, as reduced to 1810, deduced from both series. The second catalogue (B, 1st part) of about 250 stars ; similar to A. The reduction to 1810 is principally in the writing of Mr. H. Taylor. The third catalogue (B, 2d part) of about 350 stars; originally reduced to 1812, but, in other respects, similar to the last. It commences with 14 h 17 m right as- cension (B, 1st part, having terminated at 15 h 23 m ). The fourth catalogue (C) of about 1600 stars, from O h to 24 h ; similar to the last. The latter half is entirely in the writing of Mr. T. G. Taylor, excepting a few reductions to 1810, written by Mr. H. Taylor. The fifth catalogue (D) similar to the last, principally in the writing of Mr. H. Taylor. The sixth, seventh, eighth, and ninth catalogues, (E), (F), (G), (H), entirely written by Mr. H. Taylor, and reduced at once to 1810, without the intermediate reduction to 1807 or 1812. . The contents of this book are, in fact, only transcripts of the mean results from the mean sheets, No. VI. (excepting the places of catalogue A), with reduction to INTRODUCTION. 1810. The succession of catalogues has arisen merely from the observation of new stars in successive years, following generally the order of right ascension. A very few of the stars are to be found in more than one catalogue, and sometimes entered under different names. No. IX. Two stitched folio books, containing computations (in duplicate) of precession for the stars of the catalogue ; computed after the catalogue had been brought into form by Mr. H. Taylor. The formula? for precession in R.A. is 3 S -068 + (Nlog = 0-12590) x sin R.A. x cotanN.P.D. ; and that for precession in N.P.D. is -20"-045 x cosR.A. There are other detached papers by Mr. Gfoombridge, and several books or collections of papers by Mr. H. Taylor ; but none which are of the least importance for the formation of the Catalogue. I shall now mention generally the principal steps of revision which have been made under my direction. The examination made by Mr. Baily and myself had led us to the belief that the part of the work most liable to doubt was that executed under the direction of Mr. H. Taylor. Indeed, Mr. Groombridge's laborious accuracy is every where so con- spicuous, and Mr. T. G. Taylor's reputation as a careful computer is so high, that I never intended to examine their work in detail ; and, if the Book of Results had exhibited their conclusions only, I should have adopted them at once, with none but a general and cursory examination. As it is, I have not examined Mr. Groom- bridge's index errors and their application throughout the observations, nor the reductions computed by him and by Mr. T. G. Taylor, except where discordance of results compelled me to examine every step of the deductions. With regard to Mr. H. Taylor's computations, it seemed necessary to make a closer inspection. The species of work most difficult to examine by general inspection, and most laborious, was the reduction of the apparent places of the stars to their mean places. For verification of this, I selected 100 stars from those which were reduced by Mr. H. Taylor, and computed their reductions in R.A. and in N.P.D. The selection included stars observed at very different times, and in very different parts of the heavens. To prevent the possibility of repetition of any error in Groombridge's Tables, I conducted the calculation by means of the log A, B, C, D, in the Tabulae Regiomontanse. The result was, that in one star only was there a sensible error ; and, even in that, the discordance of results had been noticed, and the erroneous deductions had been rejected. This verification convinced me that the system which had been adopted in this, the most laborious part of the work, was good ; and that the reductions might be received as accurate, except particular discord- ances should lead to the suspicion of special errors. INTRODUCTION. XXV The next step was, to compare generally the separate results as to mean R.A. and mean zenith distance ; and, where a striking discordance appeared, to trace it to its cause. In this examination many errors were detected. The next step was, to examine the means of the separate results. A great many errors were found in this part of Mr. H. Taylor's work ; a few, also, were found in Mr. Groombridge's and Mr. T. G. Taylor's. I may remark that, in general, an inexperienced calculator is more likely to commit errors in computations of this kind, which admit of easy examination, than in those which are more laborious, and which require a longer process for their verification. After this a general examination was made for discovering whether the stars had been placed on the right side of the zenith, in the exhibition of the value of their polar distance. One instance of error had been pointed out by Mr. Sheepshanks-, several others were discovered, of which a few were in Mr. T. G. Taylor's work. The criterion on which, in the first instance, my conclusions were founded, was the comparison with Bode's Catalogue, or with the place of the stars in the Book of Magnitudes ; the latter having, as appears most probable, been used by Mr. Groom- bridge as a working catalogue, afforded good evidence as to the side of the zenith to which he looked for the star designated by the name which is used there. In some instances it was impossible to identify the stars with any of Bode's Catalogue ; but in every instance in which there was a shadow of doubt, the application of the index error was examined. The p's and/'s were referred to the same side of the zenith as the principal star.* Another examination was made for ascertaining whether precession had been correctly applied in bringing up to 1810 the places of the stars which had been reduced in the first instance to 1807 or 1812. Several errors were discovered here. In several instances stars had been bracketed together by Mr. H. Taylor, im- plying a belief that they were the same, though entered under different names. On examining severally the observations of each, not the smallest difficulty was found in determining the identity or non-identity of the stars. I may remark, that many well-known double stars are contained in this Cata- logue ; but that their double character is in no way adverted to by Mr. Groom- bridge, except for those of which distinct places will be found in the Catalogue. The application ( f colatitude generally was examined. In the comparisons with other catalogues (made before several of the examinations * In some instances in which the star corrections have been applied, and the colatitude combined, in a wrong assumption as to the side of the zenith, it has been found that the star corrections are rightly computed ; and, therefore, that the right place of the star has been used in computing those corrections. It would seem in these cases that the corrections have been computed by Mr. Groombridge. d XXVI INTRODUCTION. already described), several errors were detected ; but none, I believe, which would not have been discovered in the other examinations. In all these instances, it was necessary to recompute the precessions, which had been, in all cases, computed from the places exhibited in the then printed Catalogue. A few stars are inserted which had been completely reduced, but were omitted in Mr. H. Taylor's printed copy. I have now only to explain the columns of the Catalogue in the form in which it is now published The first column on each page contains the number of the star, proceeding from the beginning to the end of the present Catalogue. The next six columns contain the synonyms of the star in the principal original catalogues (Flamsteed's excepted), embracing this portion of the heavens. The second, or numbers of Hevelius, have been furnished by Mr. Sheepshanks, whose notes on the comparison will be found at the end. The name of the constellation to which the numbers of Hevelius refer, will be found in the eighth column, except (as sometimes happens) the star be referred by Hevelius and by Flamsteed to different constellations. In that case the name of the constellation of Hevelius is placed below the number. A few numbers of Hevelius, inclosed in brackets, were taken from Mr. Groombridge's catalogues, and were not included in Mr. Sheep- shanks's comparison. In the third column, the numbers of Bradley refer to the Catalogue in Bessel's Fundamenta fyc. In the fourth column it has been deemed unnecessary to repeat the hour of Piazzi's Catalogue, as there never can be any difficulty in fixing upon the correct hour. The references are to the separate edition of his Catalogue, published at Palermo in 1814. In the fifth column, the Roman numerals denote the number of the zone, and the figures the number of the star in the zone, as given in Wollaston's Fasciculus Astronomicus. The sixth refers to Pond's Catalogue of 1112 stars; and the seventh to the Catalogue of 560 Stars published by Argelander, at Helsingfors, in 1835. The eighth column contains Flamsteed's number and Bayer's character, as given in Mr. Baily's edition of the British Catalogue. If the star be one of those omitted by Flamsteed, but included in that Catalogue, its number in the Catalogue is given with the letters B. F. The rest of the Catalogue scarcely requires explanation, except that the precessions are merely geometrical precessions, computed by the formulae, Precession in R.A. = 3 S< 068 + l s> 336 x sin R.A. x cotan. N.P.D. Precession in N.P.D. = 20"-045 x cos. R.A. no consideration of proper motion being introduced. These elements are the same as those adopted by Bessel in the Fundamenta. INTRODUCTION. XXV11 To adapt the computed precessions to the elements of the Tabulae Regiomontanae, they ought to be multiplied by TOOOT. In carrying forward the place of a star for any considerable number of years, it will be necessary to attend to the change of precession. This will be done con- veniently in any case by the following formulae. At the end of t years after 1810, the right ascension in time will be, a+pt+p't* and the north polar distance in arc will be * + q t + q't* where a and p are the right ascension and precession in right ascension, and & and q are the polar distance and precession in polar distance, as tabulated in the Catalogue ; and where p, in seconds of time, is computed by the formula, -pq cotan $ x [N log = 4-38454] + gr ^ x [N log = 3-20845] and q ', in seconds of arc, by the formula, pg tan x [N log = 5-56063] In a few instances the magnitudes are omitted, where no authority could be found in the books already mentioned. In all these, it may be presumed, that the star is as small as the eighth magnitude. In the instances of a Aurigce, a Lyrce, and ex, Cygni, the number of observations of right ascension is omitted, even by Mr. Groombridge, for the following reason. It was no part of Mr. Groombridge's plan to correct the right ascensions of the fundamental stars which he used for correcting his clock ; and these three are the only ones of Dr. Maskelyne's Catalogue, which occur in the circumpolar zone to which Mr. Groombridge's Catalogue is confined. The places of these stars, there- fore, do not depend on his own observations, but are merely Maskelyne's places brought up by Mr. Groombridge to the same epoch as the rest of the Catalogue. For many of the stars which have been most frequently observed, two values of the polar distance are set down, with two statements of the number of observations. These are the stars already mentioned as included in Catalogue A of the Book of Results, of which part of the observations have been originally reduced to 1807, and part to 1812. The values having been kept separate by Mr. Groombridge, I have thought it best to exhibit the corresponding values for 1810 in a distinct form, leaving it to the reader to incorporate them if he should think fit. The nomenclature adopted by Mr. Groombridge was ; to take in the order of preference Flamsteed's number, the number of Hevelius, Bode's number, and any of these with the letter p or/. The two first I have preserved, with such alterations as Mr. Baily's emendations of Flamsteed, and Mr, Sheepshanks's comparison with XXV111 INTRODUCTION. Hevelius, have suggested ; but I have deemed it prudent to reject the latter entirely. Bode's Catalogue is one of no weight whatever for the accuracy of the places of stars, nor even as proving their existence in the heavens ; and its innovations in the introduction of new constellations are extremely objectionable. The numbers of Bode were, perhaps, adopted by Mr. Groombridge in the same manner as his own p's and f's, merely as serving for convenient reference till his observations should be completely reduced, then to be entirely discarded. In rejecting these numbers, I have thought it best also to reject the names of constellations entirely, except where (as in the names of Hevelius and Flamsteed) they form an essential part of the star's name. The confusion in the boundaries of different constellations, as laid down even by any one observer, is so great, and the reference to the numbers of a catalogue is so simple, that it is almost the duty of every one now publishing a catalogue of stars, to reject all use of the former, and to adopt only the latter. For the following particulars relating to Mr. Groombridge's history, I am indebted to the communications of Mr. Robert Wigzell, many years the confidential agent of Mr. Groombridge. Mr. Groombridge was born at Goudhurst, in Kent, on the 7th of January, 1755. At the usual age, he was apprenticed to Mr. Jere Greenland, linen-draper, who carried on business at 52, West Smithfield, London. Soon after the termination of his apprenticeship (when probably he had attained the age of 21 or 22), Mr. Green- land retired from business, and Mr. Groombridge carried on business in the same house. At first, I believe, his occupation was confined to the trade of linen-draper, but he afterwards became a West India merchant, and continued business in that capacity till the year 1815. While engaged in business, Mr. Groombridge resided principally at Goudhurst, where he built a small observatory, having from a very early age taken great delight in astronomy. About the 26th of August, 1802, he commenced his residence at Blackheath. I can give no account of his astronomical employments before 1806 (when the observations which have been in my hands commence) ; but, after that time, without ceasing to attend punctually to his com- mercial engagements in London, he laboured most vigorously on his astronomical observations at Blackheath. He retired from business about the end of 1815; and the remainder of his life was devoted to astronomy, and to music, of which he was enthusiastically fond. He died on the 30th of March, 1832, in the 78th year of his age, and was buried at Goudhurst. To this I may add, that it has never occurred to me to inquire respecting any person who seemed to have made so strong an impression on all who were acquainted with him, for his private virtues, his strong talents, his unwearied energy, and his readiness in business of every kind, whether private or public. INTRODUCTION. XXIX Mr. Groombridge was married, and, at his death, left a widow, who survived him about five months. His only child, a daughter, was married to the Rev. Newton Smart, of Farley Hospital, near Salisbury ; she died before Mr. Groombridge, leaving one son, Newton Groombridge Smart. The following notices, relating to Mr. Groombridge's astronomical habits, have been furnished by different persons ; for the most part, in answer to special inquiries addressed to them by me. By Mr. ROBERT WIGZELL. " The whole of the observations of the late Mr. Groombridge, I can positively state, were made by himself. Some of them were written in books, and others upon various scraps of paper, which, I believe, were destroyed after he was taken ill." By Colonel THOMAS COLBY, of the Royal Engineers, Director of the Trigonometrical Survey of Great Britain and Ireland. " I never was in his (Mr. Groombridge's) observatory except once, and that once only for a few minutes. He was then observing, and I remember perfectly his making some multiplications of numbers, consisting of three or four places of figures, in a peculiar manner ; setting down only the product, without the intervention of the intermediate lines to shew the product by each digit separately. From these calcu- lations, he obtained the mean result to set down for the reading of the microscopes corrected for some instrumental errors. I also remember remonstrating with him on the advantage of setting down the readings of the microscopes in their simple form, as a security against error. And I also then recalculated some of the means he had taken, using the ordinary mode for multiplying, and in these cases I found him per- fectly correct. His argument for taking means and setting down results at once, was that, if they were deferred, there was great probability of the observations being allowed to remain unreduced. He was so extremely anxious to make all his observations and reductions as accurate as he was able, that I should place great reliance on a catalogue compiled from them, under the direction of an astronomer whose skill would leave no doubt as to the subsequent application of the astronomical corrections. The last time I saw Mr. Groombridge, he was labouring at the com- putation of the astronomical corrections requisite to prepare his observations for publication. Confined to his bedroom, and knowing that he had but a short time to live, he was still anxious that mankind should have the benefit of his zealous and disinterested devotion to the cause of astronomy." XXX INTRODUCTION, By Dr. FIRMINGER, formerly Assistant at the Royal Observatory, Greenwich. " I saw very little of Mr. Groombridge after I left the Royal Observatory on the 1st of July, 1807. All my information, therefore, of his astronomical labours has reference to a period prior to that time ; for, although often solicited by Mr. Groombridge afterwards to assist him, my avocations would not allow of my so doing, From the time that Mr. Groombridge erected his four-feet circle, up to the time above-mentioned of my leaving the Royal Observatory, he always made all his registered observations himself. I have no recollection of any other person, nor do I believe that any one but himself entered a single observation. His uniform practice was, to write down his observations, after reading off the microscopes, upon a slate ; and he usually kept two or three slates by him for that purpose, carefully examining his observations and registering them at his leisure. His observatory being close to his parlour, he frequently left his dinner, stepped into it, made his observation, noted it down on his slate, and then returned to his family and friends. He had a most accurate eye, both in observing and in reading off his observation, and was one of the most accurate and expeditious men I ever saw in the manipulation of his instrument. I do not recollect him ever to have made a mistake, or to have entertained a doubt on the accuracy of his observation, so far as reading off or time was concerned. He had not reduced many of his observations at that time. His object was to first complete his series, and afterwards reduce them at his leisure. And, according to a paper published in the Philosophical Transactions, 1810, he had computed himself a very great number of them ; and I have no doubt but that the observations which he computed himself were computed with great care ; for, although no mathematician, he was an excellent arithmetician, very expeditious and correct in his computations, and understood well the application of the necessary equations to the reduction of his observations. With respect to the microscopes, I do not recollect any thing particular in their construction ; but I am certain that Mr. Groombridge never asked me any question on the method of applying their readings, which he would have done, had any difficulty arisen in the management of them. I have, therefore, no doubt but that he understood the management of them well ; and that had they read off complements, he would have either reduced them at the time to their just quantities, or have noticed the contrary in the books wherein he has registered his observations. I do not recollect whether the micrometer heads had a single or a double line of divisions. The meridian mark, by which Mr. Groombridge used to adjust his instrument, was on the south wall of Greenwich Park ; it was too near, and not well adapted for the purpose. He had not one to the south of his observatory. Mr. Groombridge was a man of no ordinary talents ; and, although he had not in his early days acquired any knowledge of the mathe- INTRODUCTION. XXXI matics, he nevertheless had a very ready and clear conception of all that is necessary in a good practical astronomer, and was most indefatigable in the pursuit of his favourite science." The following is a brief account of Mr. Groombridge's published papers relating to Astronomy. I. Philosophical Transactions, 1810. Observations on Atmospherical Refraction as it affects Astronomical Observations ; in a letter from S. GROOMBRIDGE, Esq. to the Rev. NEVIL MASKELYNE, D.D. F.R.S., Astronomer Royal. Com- municated by the Astronomer Royal. Read March 28th, 1810. Mr. Groombridge, after mentioning the fitness of his instrument for the observa- tion of zenith distance, and the care taken to exclude the sun's influence, &c. states that he has selected fifty stars, on which his observations exceed in number 1000. (I have already mentioned that the paper containing the apparent zenith distance to be used, when reduced to mean zenith distance, for this investigation, has come into my hands with the papers relating to the catalogue ; that the observations are all contained in the Zenith Distance Book, and that all are reduced by index error deduced from the first stage of the standard catalogue.) He then mentions that, Dr. Bradley's refraction having been deduced from observations of the sun with circumpolar stars, on the supposition that the sun's mean parallax was 10^"; the alteration of that coefficient to 8f " would require the coefficient of refraction to be diminished from 57" to 56^" ; and, with this coefficient (adopting Bradley's formula in other respects), all his refractions for these observations have been computed. He then gives a large table containing the star's name ; the number of observations above and below the pole ; the mean zenith distance above and below, for Jan. I, 1807 ; the mean computed refraction ; the corrected mean zenith distance above and below, (I have mentioned above, that this mean zenith distance above is the same as the second stage of the standard catalogue) ; and the sum or difference of the corrected mean zenith distances above and below, which gives the double of the colatitude, and ought therefore, if the refractions were correct, to give an invariable quantity. Instead of this, it appears that the quantity diminishes as the polar distance of the stars increases, and (as far as tj Ursae Majoris) in a pretty uniform manner. He then compares the mean of the first thirteen stars with the mean of the next twenty-one (of which q Ursae Majoris is the last) ; and, having prepared a column containing the sum of the refractions for each star, he equates the mean result for the thirteen, altered by the product of the mean sum of the refractions into an unknown quantity, with the mean result for the twenty-one similarly altered ; and- thus obtains the value of the unknown quantity = 0-02845 ; whence the XXX11 INTRODUCTION. refraction, for the mean of the barometrical and thermometrical readings occurring in these observations, is 1-02845 x 56"'5 x tan (z 3 r) : and the colatitude =. 38 31' 57"-90. (I may remark, that the numbers of the third stage of the funda- mental catalogue cannot be produced by only thus correcting the refractions.) Mr. Groombridge then gives the result of eighteen observations of the summer solstice, and thirteen of the winter solstice ; which, reduced by the altered refraction, give very nearly the same latitude for his observatory as that above deduced. The particulars of the observations are not given. He also investigates his difference of latitude from the Royal Observatory, by comparing the results above with the zenith distances of some of the same stars, obtained by Colonel Mudge, at the Royal Observatory, in 1802, with Ramsden's zenith sector. He then proceeds to correct the factor of r in the formula, by comparing the refraction of Polaris with that of each of the three lowest stars of his list (y Aurigse, Aurigse, (3 Persei) ; inferring their refractions below the pole (I suppose) from the observed zenith distance with the colatitude above given, and the zenith distance above the pole found by the first correction of refraction. Adopting for the deter- mination of the factor y the formula r cot z r cot z' if r '2 r s where z and z', r and r ' , are the zenith distances of the two stars compared and their refractions, he finds by the mean of the three, y = 3-3625 ; and, altering the coefficient to make the refraction at 45 zenith distance the same as before, he obtains for refraction, r = 58"-12 x tan (z 3*3625 X r). He then states, that the thermometrical correction has been investigated by comparing winter observations with summer observations, for several of the low stars in the preceding table, on the north side, and for Fomalhaut, on the south side ; and finds, as a thermometrical factor, 1 + 45 h x 0-0021 for the exterior thermometer, and 1 + 49 h x |o-oo24j f r * ne interior thermometer, h being the reading in degrees of Fahrenheit, and the upper or lower number being taken, according as the interior thermometer is above or below 49. IT. Philosophical Transactions 1814. Some Further Observations on Atmo- spherical Refraction. By STEPHEN GROOMBRIDGE, Esq. F.R.S. Read, March 31, 1814. Mr. Groombridge mentions, that having applied his corrected formula to stars whose zenith distance exceeded 78 10' (the zenith distance of ?? Ursse Majoris, the lowest star used in the preceding investigations), he found that the places of stars so corrected were too low, and, therefore, that his refraction was too great. In INTRODUCTION. XXX111 1811 and 1812, therefore, he made a number of observations on lower stars. From sixteen stars between 81 39' and 86 58' zenith distance, he obtained the formula 58"-133 x tan (z 3 '634 r) ; and found, also, that the thermometrical factor should be changed from 1 + 45 - h x 0-0021 to 1 + 45 - h x 0-0020. For six lower stars, whose zenith distances extend from 87 8' to 88 42', he found that the refraction would be represented by using the same coefficient, and increasing the multiplier of r by 0*00462 for each minute above 87. He then gives the reduction of the observations near the solstices of December 1810, December 1811, June 1812, and December 1812 ; and concludes with an extensive table of refractions founded on the above-mentioned formula. III. Philosophical Transactions, 1820. Astronomical Observations, by STEPHEN GROOMBRIDGE, Esq. F.R.S. Read June 29, 1820. These comprise, 1st. Observations of the Solstices in the years 1818 and 1819. There are first given the observed zenith distances of the sun in June 1818, De- cember 1818, June 1819, and December 1819 ; then the corrections for refraction by Mr. Groombridge's tables ; then the equation to the solstitial zenith distance (the grounds of computation of which are not given) ; then reductions for nutation* parallax, and sun's latitude : from these the obliquity is obtained. (The corrected zenith distances used here are the same which are to be found in the Zenith Distance Book.) 2d. Oppositions of the New Planets. There are given the day, the mean time, the right ascension (in arc), the declination, the longitude, and the latitude, of Vesta, in April 1818, Pallas, in September 1818 and February 1820, and Ceres, in February 1820. No particulars of the observations or reductions are given, except the amount of parallax. (The observations are to be found in the Transit and Zenith Distance Books.) IV. Astronomical Society's Memoirs, Vol. I. Universal Tables for the Reduction of the Fixed Stars. By S. GROOMBRIDGE, Esq. F.R.S. and S.R.A. Nap. Read November 10, 1820. These tables are founded upon the following elements : luni-solar precession n:50 // -255; coefficient of aberration = 20"-255; coefficient of lunar nutation = 9"'63; coefficient of solar nutation = 0"*4345. For the precession in R.A (m + n . sin R.A. . tan declin.), a table is given containing w.sin R.A. ; the rest must be com- pleted by numerical multiplication, and must then be combined with a factor depending on the day of the year ; for the equation of the equinoxes, a separate table ; for the remaining parts of nutation, two tables are arranged as to express 8*40 x sine of an arc, and 1-23 x sine of an arc: the arcs depending on the star's R.A. and the place of the moon's node ; and the results for R.A. requiring to be e XXXIV INTRODUCTION. multiplied by ^ tan declination. For aberration, the form used is A x sin (sun's longitude B) ; tables (of double entry where necessary) being arranged for giving A and B. The tables occupy twenty-nine quarto pages. V. Astronomical Society's Memoirs, Vol. I. Observations of the Planets, during the Period of their respective Oppositions, in 1820, 1821, and 1822 ; with the Computation of their Geocentric Longitudes and Latitudes, by Means of the assumed Parallax therein mentioned, and of his own Tables of Refraction. By STEPHEN GROOMBRIDGE, Esq. F.R.S. Read April 12, 1822. The results are stated exactly as in a paper already mentioned. The observa- tions are contained in the Books of Transits and Zenith Distances. The observations are, of Venus, in May 1822 ; of Mars and neighbouring stars, in February 1822 ; of Vesta, in January and February 1821 and June 1822; of Juno, in January and February 1823 (these are the last observations in his books) ; of Pallas, in February 1820 and May 1821 ; of Ceres, in February 1820 and May 1821; of Jupiter, in September 1820 and October 1821 ; of Saturn, in October 1820 and October 1821 ; and of Uranus, in June 1821 and June 1822. VI. Astronomical Society's Memoirs, Vol. II. On the Colatitude of the Observ- atory of Stephen Groombridge, Esq. at Blackheath ; determined by his own Observations of Circumpolar Stars, reduced by the Constant of Refraction 58"-133 at 45. Read January 13, 1826. This paper contains the results deduced from thirty-two stars, whose zenith distance does not exceed 80 : the results of six lower stars are also set down, but are not included in the formation of the mean. The observations have all been corrected by his last improved tables of refraction. The result is 38 31' 57"*82 (the same which is used in forming the Catalogue). The zenith distances used do not agree with those of the Standard Catalogue in any stage ; but they are, as far as they go, the quantities which have been used in forming the N.P.D. of Catalogue A. * # * It was the wish of Mr. Groombridge, that his manuscript observations, &c. might be deposited with the Royal Astronomical Society ; and Mr. Groombridge's representatives and Mrs. Groombridge 's executor, have intimated to me their desire that this wish may be complied with. The President and Council of the Royal Astronomical Society having undertaken the custody of the manuscripts, and the Lords Commissioners of the Admiralty having authorised me to transfer them to that body, I intend, at a very early opportunity, to place the whole of the books and papers in their hands. G. B. AIRY. GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS, REDUCED TO JANUARY 1, 1810. GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS. No. Hevelius. >. --. %^ z s, P5M 1 Wollaston. I "2 (2 Argelander. 1 Flamsteed's No. and Bayer's Character. Magnitude. 1 [light Ascension. Jan. 1, 1810. A nnual Precession. No. of Obs. North Polar Distance. Jan. 1, 1810. Annual Precession. No. of Obs. 1 6 h m s 13-47 + 3-069 4 44 40 0-9 20-045 4 2 7 24-94 3-071 5 38 48 10-6 20-044 5 3 4 3219 288 2 22 Andromedse 5 7 29-16 42-41 3-071 3-073 5 5 44 59 9-1 38 44 25-1 20-044 20-044 6 4 5 8-9 1 6-14 3-082 3 24 58 38-5 20-044 3 6 7 1 11-63 3-091 5 16 34 20-9 20-044 5 7 7 1 50-09 3-092 5 24 55 54-1 20-044 5 8 7-8 1 59-92 3-082 3 39 34 42-5 20-044 3 9 7 2 5-48 3-081 5 42 54 21-2 20-044 5 10 ' 7-8 2 9-87 3-095 9, 25 3 24-7 20-044 2 11 8 2 15-62 3-082 4 42 52 28-7 20-044 4 12 8-9 2 34-11 3-083 2 45 5 52-9 20-044 2 13 6-7 2 40-52 3-083 5 46 20 55-4 20-043 5 14 7-8 2 41-76 3-083 4 46 27 57-8 20-043 4 15 7-8 2 43-09 3-083 5 46 44 29-4 20-043 5 16 7-8 2 53-74 3-085 5 44 57 42-2 20-043 5 17 7 2 57-13 3-089 4 39 34 22-5 20-043 4 18 8 3 7-45 3-089 3 41 7 52-4 20-043 3 19 8 3 25-23 3-091 3 41 20 0-7 20-043 3 20 21 2 12 23Andromedse 6 7-8 3 40-62 4 8-02 3-086 3-120 6 3 50 50-4 24 42 53-2 20-042 20-042 6 3 22 7-8 4 13-38 3-121 4 24 51 7-3 20-042 4 23 ? 4 37-07 3-122 3 26 29 26-7 20-041 3 24 13 7 4 39-82 3-091 3 50 1 32-1 20-041 3 25 7 4 43-96 3-102 3 39 26 23-8 20-041 3 26 7-8 4 53-29 3-129 3 24 56 31-2 20-040 3 27 7-8 5 23-32 3-099 5 46 51 13-4 20-039 5 28 7-8 5 36-24 3-105 4 41 23-6 20-039 4 29 6 6 5 39-59 3-199 5 14 6 23-2 20-039 5 30 8 6 25-09 3-102 8 47 27 37-1 20-037 8 31 25 5-6 6 49-27 3-138 6 29 31 24-4 20-036 6 32 7 6 54-32 3-109 5 44 26 28-7 20-035 5 33 6 7 10-22 3-113 6 43 6 30-9 20-034 6 34 8-9 7 36-37 3-109 4 47 3 16-0 20-033 4 35 6 7 41-78 + 3-122 6 39 37 24-7 20-033 6 GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS. No. Hevelius. f. >, ;_ o> 11 11 hi P5M 1 Wollaston. rs 1 Argelander. 1 Flamsteed's No. and Bayer's Character. Magnitude. 1 Right Ascension. Jan. 1, 1810. Annual Precession. No. of Obs. North Polar Distance. Jan. 1, 1810. Annual Precession, No. of Obs. 36 7 h m s 7 45-47 s + 3-239 6 14 45' 48'-5 20"-033 37 7 7 45-87 3-206 5 18 6 33-Q 20-032 K 38 8 8 3-62 3-109 3 50 18 31-1 20-032 Q 39 7 8 7-00 3- 152 2 9Q 1Q 4fi-0 90'fnn o 40 41 13 37 " 26Andromedse 6 7 8 43-41 8 45-68 3-115 3-226 6 5 47 15 52-6 17 55 5Q-0 20-030 20-097 6 K 42 8-9 9 32-27 3 1 1 9 3 47 oo -47. s 20-026 43 7 9 44-45 3-115 Q 50 19 33-1 20-025 44 6-7 10 2-50 3-133 5 42 1 1 99-4 20-025 K 45 8 10 7-92 3-123 4 47 7 44-Q 20-025 A 46 6-7 10 27-57 3-135 5 42 5 12-2 20-023 5 47 8 10 27-57 3-127 2 46 6 58-0 20-023 2 48 6 10 27-80 3-177 Q 29 10 34-0 20-023 49 8-9 10 30-56 3-119 3 50 7 56"5 20'023 Q 50 8 10 32-36 3-126 5 47 21 35-0 20'023 K 51 8 11 0-49 3-127 3 47 20 25-3 20-021 3 52 7 " 11 9-18 3-131 5 46 7 4-9 20-020 5 53 7 11 20-46 3-185 4 29 21 42-3 20-020 4 54 8 11 35-57 3-258 3 19 32 52-3 20-019 3 55 7 12 36-91 3-168 6 36 24 33-7 20-014 6 56 7-8 13 38-22 3-145 4 45 57 58-4 20-009 4 57 5-6 14 1-33 3-145 10 46 47 20-7 20-007 10 58 5-6 14 4-68 3-169 5 39 2 3-7 20-007 5 59 8 14 7-62 3-151 4 45 10 54-0 20-006 4 60 61 21 23 58 12 Cassiopeise 5-6 6 14 23-35 14 53-11 3-218 3-183 6 6 29 13 23-9 38 26-4 20-005 20-002 6 6 62 7 15 0-34 3-318 5 19 14 50-0 20-001 5 63 8 15 19-27 3-152 2 46 43 47-0 19-999 2 64 6-7 16 59-65 3-182 5 41 4 2-7 19-989 5 65 66 17 74 Andromedse 5-6 7 18 3-46 18 43-75 3-167 3-186 6 6 46 39 26-5 42 38 19-2 19-983 19-978 6 6 67 7 19 0-19 4-406 6 4 43 54-1 19-976 6 68 6-7 19 1-16 3-268 6 28 59 15-4 19-976 6 69 6-7 20 4-94 3-282 5 28 41 50-5 19-967 5 70 9 20 8-83 + 3-175 2 47 39 28-5 19-967 2 GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS. No. Hevelius. so >. t. aj I 5 o> 2 KK E Wollaston. 1 i o PH Argelander. 1 Flamsteed's No. and Bayer's Character. Magnitude. 1 Right Ascension. Jan. 1, 1810. Annual Precession. No. of Obs. North Polar Distance. Jan. 1, 1810. Annual Precession. No. of Obs. 71 72 37 90 V.I ISCassiopeise 6 6-7 h m s 20 35-83 20 44-46 + 3-331 3-208 6 6 o / // 24 31 53-2 40 47 52-6 19-963 19-962 6 6 73 8-9 20 52-39 3-179 3 47 40 19-6 19-961 3 74 93 7 21 1-49 3-181 6 47 6 15-1 19-960 6 75 7 21 20-62 3-226 5 38 12 38-1 19-957 5 76 77 4 40 95 7 14 Cassiop. A 5 8 21 20-84 21 21-03 3-236 3-232 3 3 36 31 40-7 37 5 20-0 19-957 19-957 7 3 78 7 21 33-01 3-193 5 45 7 22-9 19-956 5 79 8-9 21 44-66 3-230 3 38 2 55-0 19-954 3 80 7-8 21 48-05 3-235 4 37 14 7-2 19-954 4 81 42 7 22 7-76 3-421 7 20 4 7-5 19-951 7 82 8 22 12-85 3-188 9, 47 12 50-1 19-950 2 83 8-9 22 13-52 3-223 3 39 56 48-0 19-950 3 84 7-8 22 14-52 3-186 5 47 33 18-6 19-950 5 85 86 5 43 99 8 8 15 Cassiop. 4 7-8 22 17-30 22 20-58 3-311 3-241 6 4 28 7 7-1 36 55 41-0 19-950 19-949 7 4 87 8-9 22 31-99 3-187 2 47 49 45-3 19-948 2 88 104 7 22 55-98 3-295 6 30 30 4-5 19-945 6 89 90 46 105 16 Cassiopeise 6 8 23 27-50 23 35-20 3-370 3-194 6 3 24 17 57-2 47 22 54-1 19-940 19-939 6 3 91 8 23 45-69 3-252 1 36 58 56-4 19-937 1 92 8-9 23 47-28 3-232 3 40 3 10-4 19-937 3 93 7 24 3-25 3-217 4 43 8 13-4 19-935 4 94 95 6? 112 Cassiopeiae 8 8 24 37-55 24 56-45 3-325 3-312 4 2 29 11 4-1 30 45 9-8 19-930 19-927 4 2 96 7-8 24 58-64 3-262 3 36 50 43-3 19-926 3 97 8-9 25 22-94 3-463 2 20 28 31-4 19-922 2 98 49 118 6 25 37-64 3-267 6 36 52 46-7 19-920 6 99 6 25 44-40 3-320 7 30 43 18-8 19-919 7 100 48 11 6 25 55-81 4-072 5 8 33 30-1 19-916 6 101 7-8 26 2-46 3-212 4 46 24 33-1 19-916 4 102 103 104 9 18 Amir. 52 123 124 9 17 Cassiop. B. F. 42 4 5-6 6-7 26 26-72 26 29-38 26 44-27 3-271 3-214 3-329 4 7 1 37 9 0-4 46 33 39-7 30 44 13-8 19-912 19-911 19-909 6 7 1 105 8 26 51-02 + 3-500 2 19 52 49-0 19-908 2 1 GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS. No. Hevelius. x >, -. n ^ tttt H a I I "o p T3 a PM Argelander. 1 Flamsteed's No. and Bayer's Character. Magnitude. 1 Right Ascension. Jan. 1, 1810. Annual Precession. No. of Obs. North Polar Distance. Jan. 1, 1810. Annual Precession. No. of Obs. 106 8 b in 27 7-77 + 3-505 2 19 51 52-9 in'on^ 2 107 7 27 32-37 3-236 4 43 38 6-3 19'900 4 108 7-8 27 46-39 3-340 3 30 43 19-6 1Q-8Q7 3 109 7 27 55-35 3-263 5 39 46 39-9 1Q-8Q6 5 110 7 28 14-44 3-266 4 39 39 20-9 19-893 4 111 6-7 28 1951 3-238 5 44 5 24-9 19-892 5 112 8 28 38-06 3-227 4 46 23 0-7 19-888 4 113 6 28 43-00 3-256 5 41 41 29-1 19-887 4 114 8 28 55-51 3-521 4 20 20 13'9 19-885 4 115 8 29 7-10 3-259 2 41 28 22-2 19-883 2 116 7-8 29 21-71 3-354 3 30 50 43-4 19-881 3 117 118 10 59 139' 13 15 18 Cassiop. <* 3 7-8 29 47-47 30 22-11 3-320 3-443 5 4 34 30 **} 25 10 24-6 19-875 19-868 181 34J 4 119 7 30 39-35 3-289 5 38 50 46-0 19-866 5 120 6 30 50-94 3-454 5 24 53 47-3 19-864 5 121 122 22 61 143 32 Androm. 6 7-8 30 51-47 30 58-13 3-210 3-571 6 3 51 35 9-7 19 40 41-3 19-864 19-863 6 3 123 124 13 62 64 147 19 Cassiop. % 6 8 31 31-33 31 43-62 3-282 3-221 6 3 40 31 5.4-5 50 21 11-3 19-856 19-853 6 3 125 7 32 1-85 3-300 5 38 42 22-9 19-850 5 126 7 32 17-62 3-763 5 15 6 2-0 19-846 5 127 ? 32 21-52 3-578 5 20 13 8-3 19-845 5 128 129 130 14 67 66 154 156 iii. 1 14 20 Cassiop. TT 21 Cassiopeiee 5-6 6 7 33 0-13 33 19-00 33 33-83 3-266 3-741 3-269 6 6 2 44 1 1-5 16 3 11-9 44 4 42-6 19-837 19-833 19-830 6 6 2 131 9 33 56-56 * 3-231 2 50 21 24-1 19-825 2 132 133 15 69 160 22 Cassiop. o 5-6 7 34 11-39 34 16-61 3-283 3-233 6 6 42 45 26-9 50 21 45-9 19-822 19-820 6 6 134 169, 6 34 31-67 3-346 6 35 49 13-3 19-817 6 135 8 35 2-73 3-348 1 36 3 35-3 19-810 1 136 137 42 Cephei 72 165 168 iii. 2 23 Cassiopeise 5-6 7 35 17-79 35 26-92 3-774 3-354 6 s 16 11 35-1 35 44 6-7 19-807 19-805 6 5 138 7 35 39-84 3-240 6 50 13 45-6 19-803 6 139 8 35 41-00 3-354 1 35 53 41-9 19-802 1 140 7 35 42-42 + 3-267 5 46 10 44-9 19-802 .5 6 GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS. No. Hevelius. fr is $ mm CO Wollaston. T3 PL, Argelander. 1 Flamsteed's No. and Bayer's Character. Magnitude. Right Ascension. Jan. 1, 1810. Annual Precession. No. of Obs. North Polar Distance. Jan. 1, 1810. Annual Precession. No. of Obs. 141 7 h m s 36 5-18 + 3-284 6 44 s' 51-0 19"-797 6 142 181 6-7 37 17-33 3-330 6 39 35 43-3 19-780 6 143 7 37 30-46 4-005 6 13 5 5-1 19-777 6 144 145 ... 177 i. 1 B. F. 46 6 8 37 34-75 37 37-15 9-302 3-649 5 3 2 12-4 20 36 1-9 19-776 19-77 ^ 7 3 146 147 17 79 185 18 19 24 Cassiop. u 4 7-8 37 40-35 37 54-52 3-402 3-677 6 4 W 11 44<3 1 1 46-7J 19 51 46-7 19-775 19-771 181 22j 4 148 7 38 2-34 3-666 5 20 15 51-8 1Q-76Q 5 149 8 38 3-01 3-281 4 46 3 56-9 19-769 4 150 151 11 83 187 25 Cassiop. 5 6 38 7-29 39 1-38 3-331 3-308 6 6 40 4 13-9 43 16 23-0 19-768 10.75/5 6 6 152 153 26 87 194 196 20 * * 35 Androm. y 4 6-7 39 22-61 39 44-53 3-260 3-290 3 6 49 57 29-5 46 2 8-5 19-749 1Q-744 5 6 154 199 6 40 8-78 3-350 6 39 31 46-6 19-738 6 155 903 6 40 47-07 3-355 6 39 27 53-4 19-728 6 156 8 41 16-79 3-413 5 34 46 15.9 19-720 5 157 8 41 47-95 3-308 4 45 13 49-0 10.710 4 158 159 18 90 209 Cassiopeise 5-6 8 41 49-27 42 2-62 3-489 3-304 12 3 29 55 14-0 45 54 2-1 19-712 1Q-70S 12 3 160 8 42 14-94 3-344 2 41 35 30-4 19-705 2 161 7 42 21-32 3-604 4 24 35 57-3 19-70T 4 162 7-8 42 25-98 3-269 5 50 47 32-6 19-702 5 163 7 42 34-27 3.343 5 41 22 44-0 19-700 5 164 7 42 50-26 3-339 1 42 30 52-7 19-695 1 165 9,11 7 42 53-78 3-382 7 38 20 39-6 19-694 7 166 8 42 59-83 3-321 4 45 12 56-8 19-67H A 167 7-8 43 25-32 3-431 5 34 42 47-7 19-685 Z 168 169 94 217 26 Cassiop. v l 5-6 8 43 48-36 44 7-22 3-473 3-356 6 2 32 3 30-1 41 37 41-9 19-679 19-674 6 170 8-9 44 7-28 3-375 2 39 49 47-8 19-674 9 171 . 5 44 20-59 3-350 6 42 21 14-3 19-670 ft 172 8-9 44 21-44 3-752 2 20 34 46-7 19-670 9 173 7-8 44 26-90 3-630 4 24 37 12-5 19-668 A 174 8 44 28-20 3-333 3 44 8 57-2 19-668 Q 175 8 44 38-40 + 8-448 4 2 45 23-8 19-665 A GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS. No. Hevelius. Bessel's Bradley. 1 Wollaston. T3 CH Argelander. Flamsteed's No. and Bayer's Character. Magnitude. 1 Right Ascension. Jan. 1, 1810. Annual Precession. No. of Obs. North Polar Distance. Jan. 1, 1810. Annual Precession. No. of Obs. 176 8 h m s 44 48-08 + 3 8 -319 10 45 56 22"- 9 19"'663 10 177 178 43 Cephei 220 i. 2 23 2 Ursse Minor. 5 8 44 49-23 44 56-62 6-181 3-278 6 3 4 46 7-5 50 38 58-3 19-662 19-659 7 3 179 8 45 8-53 3-338 3 44 9 23-1 19-656 3 180 8 45 16-47 3-327 4 45 20 57-7 19-655 4 181 182 19 99 225 22 27 Cassiop. y 3 8-9 45 19-86 45 25-75 3-517 3-506 6 3 3 I* } 30 59 53-7 19-653 19-652 101 19] 3 183 184 20 226 28 Cassiop. v 2 5-6 6 45 25-88 45 25-94 3-492 3-512 6 7 31 50 54-2 30 40 8-0 19-652 19-652 6 7 185 8 45 31-27 3-338 3 44 22 37-7 19-650 3 186 7 45 51-49 3-777 5 20 32 5-6 19-645 5 187 8-9 45 55-57 3-516 3 30 41 32-7 19-643 3 188 7 45 55-67 3-307 5 48 3 9-1 19-643 5 189 9 46 19-03 3-518 2 30 47 35-3 19-636 2 190 8 46 21-45 3-332 4 45 25 14-6 19-636 4 191 9,33 7 46 24-03 3-402 5 38 47 29-9 19-635 5 192 6 46 36-93 3-655 6 24 40 41-3 19-632 6 193 7 46 57-97 3-338 5 45 11 28-3 19-626 5 194 7 46 58-51 3-405 5 38 53 35-9 19-626 5 195 234 i, 3 6 47 9-68 7-102 3 3 52 27-3 19-622 6 196 7-8 47 34-95 3-339 5 45 25 53-4 19-615 5 197 6-7 47 56-42 3-829 6 20 2 44-8 19-608 6 198 7-8 47 57-42 3-355 5 43 59 33-7 19-608 5 199 8 48 0-47 3-336 8 46 4 23-0 19-607 8 200 7-8 48 29-67 3-404 1 39 55 6-7 19-598 1 201 8 48 35-12 3-545 4 30 31 4-1 19-596 4 202 7-8 48 52-72 3-298 5 50 52 22-0 19-590 5 203 8 49 6-12 3-828 4 20 30 22-2 19-586 4 204 248 7 49 12-90 3-512 6 32 39 46-7 19-584 6 205 7 49 21-22 3-341 6 46 18 49-0 19-581 6 206 8-9 49 37-12 3-552 3 30 40 4-3 19-576 3 207 8 49 58-33 3-411 1 40 8 53-1 19-569 1 208 8-9 50 3-79 3-367 2 44 6 5-7 19-568 2 209 8-9 50 8-48 3-864 3 20 46-4 19-566 3 210 9 50 9-76 +4-027 2 16 50 10-2 19-566 2 GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS. No. Hevelius. Bessel's Bradley. 53 I Wollaston. 1 13 g h u 6 'O 1 < Flamsteed's No. and Bayer's Character. Magnitude. 1 Right Ascension. Jan. 1, 1810. Annual Precession. No. of Obs. North Polar Distance. Jan. 1, 1810. Annual Precession. No. of Obs. 211 9,54 6-7 h m s 50 32-15 + 3*354 10 45 34 24-3 19-559 10 212 8 50 34-03 3-841 4 20 42 16-8 19-558 4 213 8-9 50 53-30 3-380 3 43 19 6-3 19-552 3 214 7 51 18-97 3-562 5 30 59 24-0 19-554 5 215 6 51 24-89 4-061 7 16 39 8-8 19-542 7 216 8 51 25-68 3-599 3 29 15 2-7 19-542 3 217 8-9 51 55-21 3-386 3 43 19 34-6 19-532 3 218 8-9 51 59-64 3-362 2 45 36 2-9 19-531 9, 219 6 52 0-56 3-590 6 29 56 59-8 19-531 6 220 7-8 52 8-49 3-384 2 43 38 51-8 19-528 9: 221 6-7 52 9-13 3-548 6 32 6 53-0 19-528 6 222 223 30 108 259 - 39 Androm. 6 8-9 52 16-00 52 17-14 3-324 3-390 6 3 49 40 44-9 43 10 12-3 19-526 19-525 6 3 224 8 52 23-03 3-609 3 29 12 47-5 19-523 3 225 7 52 41-54 3-608 5 29 26 31-8 19-518 5 226 8 52 56-18 3-877 3 20 42 16-0 19-513 3 227 8 52 59-95 3-539 4 33 2 30-9 19-511 4 228 7-8 53 0-73 3-392 5 43 22 53-3 19-511 5 229 8-9 53 8-57 3-541 3 32 59 3-8 19-508 3 230 109 7 53 28-88 4-656 6 11 25-9 19-501 6 231 267 7 53 43-82 3-438 5 40 46-2 19-497 5 232 6 53 57-69 3-321 5 51 1 52-0 19-492 5 233 268 7 54 2-19 3-922 5 20 5 23-6 19-490 5 234 6 54 30-26 3-654 6 28 15 31-6 19-480 6 235 236 12 102 263 i. 4 28 1 Ursae Min. 2 7 54 37-56 54 42'43 13-688 3-654 93 4 1 42 20-6 28 21 0-8 19-478 19-476 93 4 237 238 21 118 277 23 30 Cassiop. p 5 7 55 41-92 55 48-26 3-511 3-937 5 5 36 55-5 20 20 15-6 19-455 19-453 7 5 239 279 7 55 55-95 3-488 5 37 31 18-1 19-450 5 240 7-8 56 0-15 3-667 4 28 21 59-7 19-449 4 241 285 7 56 11-57 3-435 5 41 27 51-2 19-445 5 242 243 44 117 283 ii. 4 Cephei 6 6-7 56 19-25 56 44-64 4-690 3-346 12 7 11 20 34-0 49 45 28-3 19-442 19-433 12 7 244 6-7 57 0-59 3-579 7 32 45 17-4 19-428 7 245 6-7 57 3-94 + 3-349 7 49 30 19-2 19-427 7 GROOMBRIDGE'S CATALOGUE OF GIRCUMPOLAR STARS. No. Hevelius. 05 >. I g^j $ 2 pqcq B .-a Wollaston. 1 1 PN Argelander. 1 Flamsteed's No. and Bayer's Character. Magnitude. 1 Right Ascension. Jan. 1, 1810. Annual Precession. No. of Obs. North Polar Distance. Jan. 1, 1810. Annual Precession. No. of Obs. 246 247 31 129 290 24 41 Andromedse 5 8-9 h m s 57 9-35 57 40-47 + 3*- 375 3-589 7 a 47 4 25-7 32 36 10-5 19-425 19-413 7 3 248 249 22 130 293 iv. 1 31 Cassiopeise 5-6 8 57 57-34 58 22-36 3-886 3-477 6 2 22 14 11-7 39 26 24-3 19-407 19-398 6 2 250 8 58 23-42 3-525 3 36 23 15-4 19-398 3 251 7 58 30-35 3-528 a 36 16 47-9 19-395 5 252 253 32 134 298 30 42 Androm.
.
-. >
; i>
03 '~~ >
a? ^
{/; ctf
0> i,
pqsq
PH
Wollaston. 1
T3
1
Argelander.
Flamsteed's No.
and Bayer's
Character.
Magnitude.
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. ], 1810.
Annual
Precession.
No.
of
Obs.
316
R
h m s
1 17 2-68
+ 3-606
2
39 is' 36-1
18-923
2
317
7
17 3-28
3-480
5
46 56 24-9
18-922
5
318
319
188
80
81
iv. 3
41
38 Cassiop. A
5-6
7
17 16-68
17 24-90
4-237
3-609
6
5
20 43 8-7
39 18 13-9
18-916
18-912
6
5
320
7
17 31-54
3-814
5
30 44 11-8
18-903
5
321
7
18 0-58
3-804
6
31 12 21-3
18-895
5
322
7-8
18 34-45
3-926
4
27 38 19-5
18-878
4
323
193
86
7-8
18 40-16
4-242
4
20 57 52-6
18-875
4
324
325
326
37?
28
196
89
88
iv. 4
49 Androm. A
Cassiopeiee
5
6
7-8
18 45-68
18 48-02
19 27-29
3-535
4-151
3-945
4
5
3
43 58 39-1
22 34 23-5
27 21 50-4
18-872
18-871
18-852
5
5
3
327
7
19 30-41
3-580
5
41 38 23-2
18-851
5
328
8
19 53-89
3-488
4
47 21 49-5
18-839
4
329
6
19 54-97
3-949
6
27 23 24-9
18-839
6
330
7-8
20 33-24
4-190
1
22 17 59-4
18-819
1
331
7
20 57-36
4.447
5
18 32 21-3
18-808
5
332
2
202
100
6
21 36-37
3-821
6
31 44 53-4
18-787
6
333
7-8
21 56-37
3-972
2
27 21 13-3
18-777
2
334
109,
7
22 3-55
4-634
5
16 40 36-3
18-773
5
335
8
23 31-77
4-500
5
18 23 40-4
18-728
5
336
7-8
23 32-59
3-686
4
37 37 56-9
18-728
4
337
338
29
206
205
106
lOfi
iii. 4
40 Cassiopeiee
5-6
7
23 34-72
23 40-17
4-541
5-314
7
5
17 56 6-9
13 15-4
18-727
18-724
7
5
339
340
(22)
45
Cassiopeise
6-7
7
23 46-58
23 50-35
9-863
3-662
4
5
4 1 16-2
38 48 48-0
18-721
18-719
5
5
341
7-8
23 51-71
3-984
3
27 33 46-6
18-718
3
342
7-8
24 35-67
3-570
5
43 51 42-0
18-695
5
343
207
113
6-7
24 54-07
3-600
6
42 15 10-4
18-685
6
344
7-8
24 54-81
3-575
5
43 38 59-5
18-685
5
345
116
7
25 23-75
3-960
5
28 37 22'7
18-669
5
346
8
25 48-89
3-574
4
44 1 31-8
18-656
4
347
191
6-7
26 7-61
3-602
4
42 33 44-0
18-646
5
348
349
39
212
124
44
43
51 Andromedse
5
7-8
26 23-36
27 19-80
3-608
3-534
4
2
42 20 21-5
46 49 41-0
18-638
18-607
14
2
350
7-8
1 27 39-05
+ 3-691
4
38 42 11-3
18-596
4
12
GROOMBUIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
Bessel's
Bradley.
Wollaston. 1
13
PN
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude. 1
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
351
7-8
h m s
1 27 40-85
+ 4-782
4
16 13 29-7
1 8-595
4
352
8
27 54-43
3-609
2
42 42 58-2
18-588
2
353
8-9
27 58-79
3-566
3
45 8 32-1
18-586
3
354
7
27 59-20
4-774
5
16 21 40-2
18-586
5
355
356
218
129
52Androm. #
6
7
28 0-17
28 5-81
3-542
3-568
6
5
46 35 7-8
45 4 52-6
18-585
18-582
6
5
357
130
7
28 12-98
3-731
5
37 6 5-3
18-578
5
358
359
360
30
215
216
132
133
iv. 5
iv.6
42 Cassiopeise
43 Cassiop. *
6
6
6
28 24-95
28 25-95
29 19-11
4-425
4-257
3-530
5
6
7
20 20 37-2
22 55 26-7
47 40 7-4
18-571
18-571
18-542
5
6
7
361
362
40
221
137
13P
53 Androm. T
5
7
29 24-42
29 52-89
3-489
3-938
5
3
50 23 25-3
30 25 2-1
18'536
18-523
5
3
363
8
30 12-78
4-838
1
16 8 19-2
18-512
1
364
365
41
142
44
Andromedee
6
7-8
30 16-03
30 23-33
3-524
4-254
6
4
48 20 43-3
23 24 0-6
18-510
18-506
6
4
366
367
224
143
44 Cassiopeiee
6
7-8
30 34-17
30 57-47
3-945
3-631
5
5
30 24 43-7
42 32 53-9
18-500
18-488
5
5
368
7
31 26-51
3-495
5
50 35 14-4
18-471
5
369
7-8
31 30-98
3-636
6
42 26 48-8
18-468
6
370
7
31 38-69
3-732
5
38 4 39-4
18-464
5
371
7
31 45-97
3-577
6
45 38 28-1
18-460
5
372
373
42
227
151
50
54Andromedee
4
8-9
31 48-98
32 15-72
3-683
3-582
3
3
40 16 24-6
45 31 44-2
18-458
18-443
7
3
374
6-7
32 54-20
3-598
6
44 49 13-3
18-421
6
375
8
33 51-08
4-098
4
27 18 15-3
18-387
4
376
377
159
B. F. 203
6
8
34 8-02
34 18-66
4-111
3-729
5
3
27 5 31-2
38 56 13-7
18-377
18-370
4
3
378
8-9
34 35-10
4-103
i
27 22 34-8
18-362
|
379
7
35 4-16
5-028
5
15 21 37-6
18-345
5
380
6-7
35 30-74
3-787
6
36 57 3-1
18-329
6
381
7-8
35 51-50
3-786
3
37 3 57-1
18-317
3
382
6
36 11-66
3-618
6
44 43 19-7
18-305
6
383
165
7
36 15-95
5-476
6
12 44 59-4
18-302
6
384
176
50
6-7
38 51-63
3-757
6
39 35-1
18-209
6
385
7
1 39 4-78
+ 3-838
4
36 1 24-1
18-201
4
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
13
No.
Hevelius.
si >,
rt "
-^
i/3 CO
y>
1
a
Wollaston. 1
13
C
o
&H
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude. 1
Right A scension .
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
386
7-8
h m s
1 39 17-97
+ 3- 840
9,
36 6 14-2
18-193
2
387
8-Q
39 30-91
3-759
9,
39 8 51-9
18-185
2
388
389
390
391
1?
31
237
238
239
177
181
184
55
53
1 Persei
2 Persei g
45 Cassiop. e
6
6
3
7-8
39 35-31
40 8-07
40 51-01
40 56-46
3-849
3-738
4-172
3-540
5
6
4
2
35 47 55-9
40 9 8-9
27 16 20-0
50 19 22-0
18-182
18-162
18-135
18-132
5
6
6
2
392
7
40 59-44
5-108
5
15 36 9-1
18-130
5
393
8-9
41 20-51
3-563
3
49 6 12-0
18-117
3
394
395
32
241
186
187
iv. 7
46Cassiopeiee
6
7
41 24-93
41 33-57
4-466
3-716
6
5
22 15 19-3
41 29 56-3
18-114
18-109
6
5
396
397
44
244
190
55 Andromedse
6
7-8
41 56-21
42 14-50
3-547
3-716
6
2
50 12 50-0
41 38 9-4
18-095
18-082
6
2
398
8-Q
42 15-82
5-152
1
15 28 17-1
18-081
1
399
1Q4
7
42 50-09
4-876
7
17 46 52-4
18-059
7
400
7
43 15-81
3-551
3
50 17 5-6
18-044
3
401
250
7
43 30-55
3-553
3
50 14 4-9
18-035
3
402
19Q
7-8
43 35-64
3-782
4
39 14 58-4
18-031
4
403
8
43 47-15
4-259
3
26 9 15-0
18-02*)
3
404
246
6
44 10-74
5-606
6
13 52-5
18-009
6
405
8
44 15-94
4-428
4
23 21 20-3
18-006
4
406
7-8
44 18-33
3-830
4
37 37 56-7
lS-00'5
4
407
6-7
44 23-40
3-805
1
38 33 45-3
18-002
1
408
7
44 36-99
3-810
4
38 26 51-7
17-QQ3
A
409
8-9
44 52-10
5-202
1
15 27 37-0
17-984
1
410
7
44 53-02
5-208
5
15 25 41-9
17-983
5
411
7
44 54-59
4-401
'6
23 53 22-9
17-981
6
412
7
45 4-25
3-581
5
49 2 41-5
17-975
5
413
8-9
45 32-01
3-834
2
37 46 21-6
17-957
2
414
8
45 45-27
3-582
5
49 10 9-6
17-949
5
415
8
45 48-31
4-434
2
23 32 57-8
17-947
2
416
9,07
6
46 8-82
3-690
6
43 50 18-3
17-934
$
417
8
46 9-16
3-836
2
37 51 19-6
17-933
2
418
7
46 27-90
3-584
5
49 14 20-9
17-922
5
419
420
45'
Cephei
254
208
211
ii. 8
..,
47 Cassiopeise
3 Persei
6
6
46 31-00
1 46 32-68
5-535
+ 3-740
6
6
13 38 30-0
41 43 51-5
17-919
-17-918
6
6
14
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
00 >.
t-
11
0> t->
PQCQ
Wollaston. 1
HS
PM
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude. 1
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
421
422
33
258
210
iv. 8
62
48 Cassiopeise
5
7
h m s
1 46 33-86
46 39-13
+ 4 S -712
5-020
6
4
20 1 20-3
17 4 37-8
^17-917
17-914
6
4
423
7-8
46 45-03
3-692
9,
43 53 33-8
17-910
2
424
6
46 47-48
6-607
6
9 37 31-8
17-908
6
425
7-8
47 3'93
4-755
5
19 37 50-7
17-897
5
426
7
47 24-62
6-699
6
9 26 11-5
17-883
6
427
428
429
34
260
259
215
217
iii. 5
ii. 9
64
57
50 Cassiopeise
49 Cassiopeiee
4
5-6
6-7
47 27-30
47 45-93
48 16-44
4-872
5-358
4-OQQ
4
6
3
18 30 25-6
14 48 28-3
26 17 18-3
17-882
17-869
17-849
6
6
3
430
7-8
48 32-55
6-043
5
11 34 26-1
17-838
5
431
7-8
48 33-85
^646
5
46 30 25-6
17-837
5
432
7
48 42-23
3-866
3
37 24 13-9
17-832
3
433
7-8
48 43-2Q
4.770
5
19 42 43-6
17-831
,5
434
435
436
437
438
265
264
266
269
219
220
221
224
iii. 6
52 Cassiopeise
51 Cassiopeise
53 Cassiopeise
4 Perse i
7
7
7
5-6
7
48 51-72
49 0-22
49 4-84
49 43-83
49 5^-79
4-319
5-155
4-294
3-902
3-877
7
5
7
6
5
26 1 24-9
16 20 17-5
26 32 5-8
36 26 13-5
37 17 43-5
17-825
17-820
17-816
17-791
17-784
7
6
7
6
,5
439
7-8
50 26-57
3-708
5
44 4 51-8
17-762
5
440
270
7
50 31-91
4.340
5
25 49 0-7
17-759
5
441
7-8
50 49-61
5.q-|
2
36 13 39-4
17-747
2
442
9,30
8
51 2-05
4-314
4
26 32 6-7
17-739
4
443
8-9
51 28-57
6-217
4
11 13 15-0
17-720
4
444
8
51 32-31
4-314
3
26 37 56-4
17-714
3
445
8
M 4.7-78
fi-09^
4
11 13 16- c )
17-707
4
446
8
52 15-05
4-33Q
2
26 18 29-2
17-688
2
447
448
449
45
276
274
236
239
iii. 7
67
59
60
57 Androm. y
54 Cassiopeise
2-3
6
7
52 17-14
52 57-66
53 11-19
3-623
4-869
3-816
3
6
5
48 35 16>9 i
S * 17-4J
19 20 58-2
40 16 24-9
17-687
17-658
17-650
15)
17]
6
5
450
7-8
54 6-77
3-927
4
36 36 22-4
17-611
4
451
8
55 3-66
3-868
3
38 47 3-3
17-571
3
452
7-8
55 10-15
6-169
4
11 43 25-3
17-567
4
453
8
55 52-08
3-681
3
46 32 56-9
17-538
3
454
282
6
56 8-76
5-206
5
16 52 31-5
17-526
6
455
(2)
Persei
7
1 56 36-63
+ 3-945
2
36 35 21-5
+ 17-505
2
GROOMBRIDGE'S CATALOGUE OF CIRGUMPOLAR STARS.
15
No.
Hevelius.
* ^>
-. 4>
23
,
;-
SH
$ s
'A
Wollaston. 1
o
PL,
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude.
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
491
8
h m s
2 6 3-59
+4-002
2
36 47 23-8
17-088
9
492
7-8
6 9-97
3-698
1
47 59 12-2
17-083
1
493
7
6 54-64
3-957
5
38 19 23-0
17-050
5
494
41
6-7
7 2-99
3-851
6
41 55 57-5
17-043
6
495
496
5
Persei
319
43
62 Androm. c
6
7
7 4-87
7 57-82
3-810
3-641
5
5
43 30 14-4
51 2 49-2
17-041
17-000
5
5
497
7
8 14-32
4-031
5
36 22 12-1
16-988
5
498
499
324
325
53
63 Andromedse
6
7
8 27-34
8 27-51
3-893
3-815
6
2
40 43 39-8
43 34 10-1
16-978
16-977
6
2
500
7-8
8 49-34
4-026
1
36 37 43-4
16-961
1
501
502
326
55
73
9 Persei i
6
7
9 11-66
10 34-65
4-087
3-964
6
5
35 1 55-0
38 47 27-0
16-943
16-878
6
5
503
504
505
47?
47?
61
62
Andromedse
Andromedse
6
7
7-8
11 3-64
11 5-83
11 13-77
3-686
3-688
4-040
6
5
4
49 28 25-6
49 23 40-2
36 40 51-9
16-855
16-853
16-847
6
5
4
506
507
508
509
510
46?
6
Persel
331
330
334
60
64
65
71
74
Cephei
64Andromedae
10 Persei
65 Andromedee
6
5-6
7
5-6
8
11 17-72
11 51-46
11 56-35
13 1-05
13 9-21
7-535
3-909
4-136
3-923
6-798
7
6
6
6
3
9 12 45-3
40 51 47-9
34 15 37-8
40 35 21-8
11 7 28-1
16-844
16-818
16-814
16-762
16-755
7
5
6
6
3
511
512
35
332
72
v. 4
75
B.F.292,Cas.z
4
7
13 34-87
14 29-29
4-763
6-010
5
5
23 27 41-1
14 8 3-8
16-735
16-692
8
5
513
78
7
15 6-71
4-008
5
38 18 48-1
16-661
5
514
515
337
79
66Andromedse
6-7
7-8
15 10-88
16 38-27
3-945
5-142
6
2
40 17 16-5
19 53 46-3
16-658
16-587
6
9
516
86
7
16 58-03
5-185
6
19 33 15-2
16-570
6
517
7
17 51-95
4-046
3
37 41 0-3
16-526
3
518
6
18 12-44
3 666
6
51 43 4-4
16-510
6
519
7-8
18 18-59
5-129
3
20 12 18-3
16-504
3
520
7
18 29-44
3-664
4
51 53 58-4
16-496
4
521
7-8
18 35-74
4-821
5
23 25 59-5
16-490
5
522
7-8
18 48-39
5-166
3
19 55 44-1
16-480
3
523
9
19 1-46
5-154
2
COT
20 -l":f-35-7
16-469
2
524
525
36
Cassiop.
348
97
100
iii. 8
78
B.F.306
5
6-7
20 14-02
2 20 21-48
5-427
+ 4-032
6
6
[4y
18 1 29-3
38 32 20-1
16-408
16-405
5
6
GIIOOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
17
No.
Hevelius.
00 >,
0)
S^
cu
MM
"3
I
S
Wollaston.
13
h
Argelander.
Flamsteed's No.
and Bayer's
Character.
Magnitude.
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
526
7
h m s
2 20 30-23
+4-851
5
23 20' 6'-3
16-395
5
527
344
6
21 16-32
7-747
3
9 22 28-4
16-356
6
528
8-9
21 22-78
5-198
2
19 56 20-7
16-350
<2
529
8-9
22 41-92
5-255
3
19 36 39-4
16-283
3
530
7
23 37-52
3-699
5
51 10 30-2
16-236
5
531
1H
6
23 49-20
4-041
6
38 52 37-1
16-224
6
532
353
7-8
24 30-01
5-330
4
19 12 16-4
16-191
4
533
7-8
24 42-54
4-076
3
38 1 22-6
16-180
3
534
7
25 0-41
3-760
5
48 46 16-5
16-165
5
535
358
7
26 13-58
4-965
3
22 45 43-3
16-101
3
536
132
6
27 12-43
4-092
6
38 1 26-2
16-051
6
537
366
6
28 39-39
4-970
5
'22 59 37-9
15-976
5
538
8
29 25-15
5-411
2
19 5 34-7
15-93'4
2
539
540
369
142
11 Persei
6
6
29 31-85
29 40-85
4-197
4-134
6
6
35 42 52-1
37 17 37-0
15-928
15-920
6
6
541
8-P
30 0-25
3-957
3
42 27 28-1
15-903
3
542
543
7
371
146
12 Persei
5-6
6-7
30 17-94
30 20-76
3-737
3-956
6
6
50 37 3-9
42 33 18-1
15-887
15-885
6
6
544
7-8
30 23-79
7-384
4
10 41 45-5
15-882
4
545
546
547
8
374
376
150
154
83
72
13 Persei 3
14 Persei
4
6
7-8
31 16-87
31 45-66
31 51-63
3-992
3-847
5-448
7
6
6
41 35 ^J
46 31 10-7
19 3 12-5
15-835
15-809
15-803
23)
68]
6
6
548
8-9
32 1-01
5-290
2
20 18 33-6
15-795
2
549
7-8
33 5-88
5-945
6
16 3 42-4
15-737
6
550
8-9
33 6-44
5-304
2
20 18 47-2
15-736
2
551
8
33 28-39
4-017
3
41 9 25-2
15-716
3
552
6-7
34 7-76
5-704
4
17 31 22-6
15-680
4
553
7
35 9-40
3-861
5
46 32 3-5
15-625
5
554
B. F 341
7
35 19-12
4-320
6
33 46 11-7
15-616
6
555
7
35 32-62
3-861
-4
46 35 56-3
15-603
4
556
B. F. 343
6-7
35 34-93
4-325
6
33 43 6-7
15-601
6
557
7
36 -21-38
4-861
5
25 9 46-0
15-559
5
558
6-7
36 33-73
5-756
4
17 25 15-3
15-546
4
559
560
9
179
89
1 5 Persei
4
8
36 55-14
2 37 4-41
4-280
+ 3-807
6
4
3454 *}
48 51 54-4
15-527
J5-518
231
n
4
18
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
p >
33
M
Wollaston. 1
T3
1
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude.
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
561
180
7-8
h m s
2 37 16-82
+ 4-132
5
O 1 II
38 30 56-4
15-506
5
562
7
37 30-08
5-692
6
17 54 4-8
15-494
fi
563
8-Q
38 22-62
3-812
9,
48 51 7-1
15-446
2
564
6-7
38 23-14
4-167
7
37 45 47-5
15-446
6
565
184
8
38 43-75
4-137
3
38 35 37-5
15-426
3
566
a
39 12-85
3-902
a
45 44 3-3
15-399
3
567
7
39 24-03
3-898
5
45 53 54-2
15-389
5
568
6
39 27-62
4-173
7
37 47 36-9
15-385
7
569
7
39 43-47
5-690
9
18 6 33-4
15-371
q
570
8
40 6-40
4-913
3
24 58 41-5
15-349
3
571
7-8
40 8-97
3-821
5
48 46 11-7
15-347
5
572
8-9
40 35-06
5-414
3
20 9 57-3
15-322
3
573
574
11
399
190
193
93
18 Persei r
5-6
7
40 51-71
41 12-21
4-171
4-112
10
5
38 1 29-5
39 37 7-8
15-307
15-288
23
5
575
8
41 13-52
6-910
1
12 40 52'1
15-285
1
576
8
41 16-41
3-975
5
43 37 33-6
15-284
5
577
578
47?
392
191
ii. 10
f
Cephei
6-7
a
41 24-10
42 16-50
7-378
4-114*
12
3
11 21 2-2
39 42 18-7
15-276
15-226
12
3
579
6-7
42 47-23
3-987
5
43 28 40-7
15-197
5
580
396
7
43 8-73
8-406
6
9 17 10-0
15-176
6
581
206
6-7
43 35-91
4-129
5
39 30 59- 'S
15-151
5
582
8
43 39-82
7-808
4
10 27 43-1
15-147
4
583
8
43 40-14
3-829
4
48 58 22-2
15-147
4
584
7
43 45-24
3-991
5
43 28 58-5
15-142
5
585
6
43 46-67
3-987
6
43 36 56-5
15-140
6
586
a-q
43 56-12
4-178
2
38 16 34-9
15-132
2
587
7-8
45 50-94
3-846
5
48 39 42-4
15-022
5
588
7
46 23-11
3-884
6
47 24 19-2
14-991
6
589
590
13
411
217
"
22 Persei v
4
5-6
46 39-12
46 59-69
3-785
4-004
6
9
51 6 23-9
43 32 59-4
14-975
14-955
13
9
591
592
220
-
Bf. F. 367
6-7
6
47 24-06
47 25-92
4-191
3-823
6
7
38 24 50-5
49 44 1 -0
14-932
14-930
6
7
593
8
47 59-41
3-856
4
48 37 24-2
14-897
4
594
7
49 18-38
7-874
4
10 36 25-4
14-820
4
595
402
i 6
6
2 49 30-00
+ 11-937
5
5 47 44-5
14-809
7
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
19
No.
Hevelius.
09 >.
1 j
38 34 3-8
14-428
14-378
14-374
14-291
121
3J
6
6]
29j
4
619
8-9
58 35-35
4-087
1
42 40 34-2
14-261
1
620
621
21
265
28 Persei a
5
6
59 3-68
59 39-26
3-827
3-907
5
5
51 7 11-1
48 21 6-3
14-231
14-195
6
5
622
442
6-7
2 59 42-14
5-153
6
24 20 24-0
14-193
6
623
268
8
3 13-68
4-096
2
42 36 50-2
14-160
2
624
269
6-7
15-46
4-099
5
42 32 50-8
14-158
5
625
8
43-30
4-091
2
42 48 19-7
14-129
2
626
8
58-12
4-089
2
42 55 11-5
14-114
2
627
6-7
1 20-27
4-500
6
33 34 45-2
14-091
6
628
6
2 2-48
5-554
fi
20 58 46-4
14-047
6
629
6-7
2 17-27
4-215
5
39 45 39-2
14-032
5
630
5
5-6
3 2 22-98
+ 3-921
6
48 12 58-6
14-026
6
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
05 >.
t (-c
S
Wollaston. 1
1
PH
Argelander. I
Flamsteed's No.
and Bayer's
Character.
Magnitude. I
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
701
st
h m s
3 19 42-98
+ 3 S - 9 34
5
49 44 15"-5
12-904
5
702
6
19 56-48
4-177
6
42 42 18-9
12-889
6
703
7
21 6-00
3-908
fi
50 45 8-1
12-811
6
704
8-9
21 33-88
4-230
1
41 31 52-8
12-780
1
705
8
21 41-76
4-068
3
45 50 51-2
12-771
3
706
7-8
22 44-80
4-007
5
47 45 5-7
12-699
5
707
708
26
488
84
123
v
37 Persei $
5
8
23 2-44
23 3-49
4-200
4-008
6
4
42 27 3-8
47 45 29-6
12-679
12-678
6
4
709
7
23 6-03
7-737
5
12 30 9-6
12-676
5
710
6-7
23 19-30
6-661
5
16 5 14-0
12-660
5
711
7
23 55-08
5-802
5
20 47 5-4
12-620
5
712
8
24 45-58
7-849
2
12 17 13-0
12-562
2
713
6
25 11-68
4-005
6
48 3 14-4
12-533
5
714
7-8
25 15-32
4-081
4
45 50 2-6
12-529
4
715
7-8
25 19-05
4-081
4
45 50 5-4
12-524
4
716
Q4
5-6
25 46-87
5-083
6
27 24 52-5
12-493
6
717
7
26 12-03
4-007
6
48 5 23-0
12-464
6
718
7
26 22-39
6-106
5
19 12-3
12-453
5
719
Q7
6-7
27 9-10
4-840
8
30 39 24-7
12-399
6
720
8
27 13-13
4-840
9
30 38 38-9
12-394
2
721
109,
v 6
6
28 10-84
5-501
6
23 24 38-1
12-329
6
722
723
724
725
27
6
5
499
106
105
111
iii.10
127
94
39 Persei 2
Camelopardi
Camelopardi
3
5
5
7
29 26-76
29 32-23
30 30-10
31 45-80
4-209
5-121
6-106
5-528
9
5
5
3
S3}
27 16 11-9
19 16 14-8
23 26 15-0
12-241
12-237
12-168
12-079
27)
77]
5
5
3
726
727
7
121
v. 7
Camelopardi
5
7-8
32 15-28
32 18-51
5-352
5-939
6
4
25 4 37-7
20 5 23-7
12-045
12-041
6
4
728
729
30
506
122
128
41 Persei v
4
7-8
32 19-34
32 41-88
4-029
4-011
4
2
48 1 59-8
48 36 6-0
12-041
12-014
5
2
730
8
32 41-97
4-137
2
45 30'6
12-013
2
731
6
32 44-46
4-141
6
44 55 35-0
12-011
6
732
7-8
33 4-91
4-3Q6
4
38 53 45-4
11-987
4
733
7
33 9-53
3-907
3
51 56 2-1
11-982
3
734
7-8
33 36-31
4-389
5
39 4 26-5
11-950
5
735
7
3 34 12-10
+ 4-087
3
46 31 45-2
11-909
3
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
23
No.
Hevelius.
j .
as
2
PPpq
53
I
Wollaston.
13
Argelander.
Flamsteed's No.
and Bayer's
Character.
Magnitude. 1
Right Ascension
Jan. 1, 1810.
Annual
Precession
No.
of
Obs.
Nortli Polar
Distance.
Jan. 1, 1810.
Annual
Precession
No.
of
Obs.
736
8
h m s
3 34 36-51
s
+ 4-387
3
/ ,i
39 13 23-1
1 1"-880
3
737
6-7
34 45-24
6-701
5
16 30 21-9
1 1-870
5
738
7
35 12-19
4-4/52
6
37 56 33-5
1 1-83Q
6
739
7-8
35 23-08
5.070
4
20 23 27-5
11-826
4
740
6-7
36 4-07
4-08Q
6
46 38 6-7
U-777
6
741
7
36 10-52
4-447
6
38 6 46-2
11-770
6
742
7
36 14-16
6-254
5
18 45 38-9
11-765
5
743
6
36 53-23
4-12Q
6
45 37 27-7
11-719
6
744
8
37 6-34
4.4/50
3
38 5 5-9
11-704
3
745
8
36 7-63
7.0QQ
2
14 23 3-0
11-702
2
746
747
49
160
i. 8
Cephei
6
8-9
38 54-54
39 17-48
9-349
4-46 5
7
3
9 51 10-6
38 49-0
11-576
11-548
7
3
748
8-9
39 53-23
7-QQ1
2
14 23 44-2
11-505
2
749
8
40 17-fil
fvOfiO
4
20 7 5-3
11-476
4
750
i. 9
142
6
40 20-22
15-658
5
4 58 27-1
11-473
6
751
8
40 27-1?
7-QQQ
3
14 24 47-0
11-465
3
75'2
8
40 31-70
A'dftA.
4
38 8 59-8
11-459
4
753
754
755
8
9
-
177
178
*
Camelopardi
Camelopardi
5
6
7-8
40 45-52
41 1-71
41 18-28
5-176
5-012
4-478
4
6
5
27 30 1-7
29 27 45-5
37 55 57-1
11-442
11-423
11-403
5
6
5
756
8
41 20-37
8-426
4
11 35 30-1
11-401
4
757
6-7
41 23-02
4-457
6
38 21 11-1
11-397
6
758
7
41 46-40
7.400
6
14 8 4-1
11-370
6
759
760
761
33
533
186
188
-
98
B. F. 479
43 Persei A
5
5
q
42 19-75
42 31-54.
42 32-27
4-262
4-388
8-385
6
3
?,
42 41 56-9
39 52 6-3
11 43 10-2
11-329
11-315
11-314
6
5
2
762
6-7
44 4-65
7-104
6
15 21 21-5
11-203
6
763
7-8
44 4-03
8-51 1
5
11 30 26-4
11-203
5
764
7
44 21-91
4-043
6
48 41 2-5
11-182
6
765
766
35
539
196
, 10
146
45 Persei i
3
6
45 8-16
45 28-24
3-983
12-546
8
5
50 33 1 j
6 41 44-1
11-126
11-102
9)
27j
5
767
6-7
45 52-85
3-947
6
51 43 3-1
11-072
6
768
7-8
47 3-22
4-885
2
31 35 57-5
10-986
2
769
6-7
47 4'21
3-950
6
51 44 5-6
10-985
6
770
'
7-8
3 47 12-25
+ 4-884
2
31 37 27.8
10-975
2
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
to >
:
111
778
37
549
224
151
47 Persei A
4
6
52 28-55
53 26-53
4-412
4-991
4
6
40 10 40-2
30 36 54-1
10-587
10-515
6
6
779
. 12
6
54 37-00
9-773
6
9 39 38-5
10-428
6
780
7
54 49-05
6-042
5
21 14-6
10-413
5
781
782
38
557
240
154
48 Persei c
5
7
54 54-41
55 44-94
4-301
7-095
6
4
42 48 29-3
15 51 442
10-406
10-343
6
4
783
6-7
56 20-43
7-104
6
15 51 35-3
10-299
6
784
i 13
6
56 42-54
7-542
6
14 23 8-8
10-271
6
785-
7-8
56 48-19
9-895
2
9 32 42-3
10-264
3
786
7
56 57-80
6-215
5
20 2 55-0
10-251
5
787
7-8
57 9-66
7-120
3
15 49 49-4
10-237
3
788
OW
8
3 59 42-26
4-445
1
40 1 21-5
10-044
1
789
790
11
260
Camelopardi
6
8-P
4 14-05
28-80
5-188
4-620
12
3
28 38 37-7
36 47 37-0
10-004
9-985
12
3
791
7-8
41-36
5-185
9,
28 41 44-9
9-969
2
792
8
46-50
4-459
9,
39 48 34-9
9-963
9,
793
794
39
564
1
155
51 Persei p
4
8
59-20
1 2-51
4-352
5-529
6
3
42 5 12 'H
42 & ll-4(
25 14 6-0
9-947
9-943
21]
48
3
795
6
1 28-89
4-882
6
32 37 44-9
9-910
6
796
7-8
1 29-42
5-200
2
28 34 38-1
9-909
2
797
798
799
(12)
40
565
7
8
B. F. 512. Camel
52 Persei/
6
5
7
1 56-87
1 59-09
2 54-01
4-618
4-044
4-476
11
6
4
36 52 45-9
50 36-2
39 37 21-1
9-874
9-871
9-801
11
6
4
800
801
802
803
13
12
41
10
18
v. 8
157
Camelopardi
Camelopardi
B.F.515. Pers.6
B F 517
6
8
5
6-7
2 54-24
3 53 32
4 0-01
5 0-21
5-530
4-620
4-452
4-443
12
3
4
6
25 20 26-0
36 57 59-8
40 11 9-0
40 25 42-1
9-801
9-726
9-718
9-642
12
3
4
6
804
6
5 0-90
4-110
6
48 20 21-1
9-640
6
805
14
Camelopardi
8
4 5 4-32
+ 5-118
1
29 45 10-8
9-636
1
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
25
No.
Hevelius.
39 >,
I-c *
V ~3
y. ctf
0) -
|
CO
Wollaston.
13
1
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude. 1
Right Ascension
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession
No.
of
Obs.
806
807
14?
Camelopardi
7-8
7
h m s
4 5 5-32
5 11-89
+ 5 S - 124
8-218
3
5
29 40 54-8
12 49 20-0
9-634
9-626
3
K
808
22
6
5 20-89
5-121
12
29 43 56-7
9-615
12
809
810
B.F.521. Pers.i
6-7
7
5 50-58
5 54-35
4-489
6-541
6
10
39 33 18-8
18 40 47-4
9-577
9-573
6
10
811
8
5 55-60
5-561
3
25 13 41-4
9-751
}
812
8
6 21-75
4-497
1
39 27 1-5
9-537
I
813
8-9
6 21-78
4-501
3
39 21 28-7
9-537
Q
814
31
6
7 8-91
4-104
Q
48 39 50-8
9-476
815
8
7 29-98
5-778
4
23 29 53-6
9-449
A
816
8-9
7 42-94
4-501
3
39 26 59-6
9-432
Q
817
818
42
577
33
53 Persei d
6
8
7 51-07
7 54-28
4-291
6*535
6
5
43 59 6-9
18 47 22-2
9-422
9-417
5
819
7-8
8 1-90
4-548
4
38 33 20-4
9-408
4
820
7-8
8 34-04
8-903
4
11 26 44-5
9-367
4
821
7
9 40-69
4-554
5
38 33 13-3
9-281
5
822
44
7-8
10 9-72
4-501
4
39 36 36-0
9-243
4
823
8-9
10 29-09
4-502
2
39 36 38-3
9-218
2
824
46
6
10 44-15
4-136
6
48 1 47-5
9-1Q9
6
825
8
10 46-28
6-311
3
20 6 16-8
9-196
3
826
7
Jl 20-65
4-112
6
48 43 26-7
9-151
6
827
8
11 24-97
6-360
4
19 51 45-4
9-146
3
828
ii 1 1
7
11 40-74
6-752
5
17 54 11-1
9-125
5
829
6-7
11 44-21
5-704
6
24 17 58-8
9-121
6
830
7
12 24-55
4-559
4
38 37 49-1
9-068
4
831
7-8
12 49-88
8-057
5
13 26 55-1
9-035
5
832
8
13 29-07
8-057
3
13 28 8-4
8-984
3
833
67
7
14 5-42
5-914
5
22 48 0-0
8-937
5
834
8
14 11-80
6-341
3
20 4 56-9
8-929
3
835
8
14 39-95
7-169
4
16 16 42-2
8-892
4
836
7
16 12-80
6-656
6
18 31 22-1
8-770
6
837
838
607
84
Camelopardi
6
8-9
17 1-78
18 46-02
4-694
4-540
6
4
36 31 1-9
39 22 18-1
8-706
8-568
6
4
839
616
101
6-7
20 1-15
4-182
3
47 23 1-0
8-470
3
840
618
104
-
57 Persei m
6
4 20 4-49
+ 4-184
6
47 21 17-9
8-465
6
26
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
o> ,
1 2
MM
M
N
SI
CO
ft
Wollaston. 1
o
a
o
PL,
>J
,
- 2
.
;_ n
ill
0> U
PQSQ
"5
H
1
S
Wollaston.
"H
Argelander.
Flamsteed's No.
and Bayer's
Character.
Magnitude.
flight Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
3326
7-8
h m s
20 47 39-04
+ 1-601
4
/ //
34 7 52 -^
13. 300
A
3327
6-7
47 44-44
1-932
6
41 11 4-0
13-396
Q
3328
(
7-8
47 48-54
1-481
4
32 3 36'3
13-400
4
3329
391
7
47 52-73
1-711
5
36 12 30-4
13-405
5
3330
8
47 52-96
2-209
3
49 8 36-1
13-405
3
3331
7
48 7-57
2-058
5
44 29 18-5
13-421
5
3332
7
48 22-14
2-182
4
48 12 27-2
13-437
4
3333
7
48 35-85
2-156
5
47 21 13-1
13-452
5
3334
7
48 37-70
2-055
5
44 22 7-4
13-454
5
3335
7-8
48 44-47
1-620
4
34 21 22-9
13-461
4
3336
7
49 20-27
2-156
5
47 17 59-9
13-500
5
3337
6
49 52-95
2-110
6
45 48 4-4
13-534
6
3338
3339
31
2724
410
937
58 Cygni
4
q
50 5-38
50 9-92
2-229
1-598
7
2
49 33 33-6
33 48 37-9
13-548
13-553
7
2
3340
7
50 22-60
2-273
6
51 3 57-6
13-566
6
3341
6
50 23-40
1-896
6
39 59 50-8
13-567
6
3342
8
50 29-85
2-272
1
51 18-8
13-574
1
3343
7-8
50 30-39
2-192
4
48 17 7-2
13-575
4
3344
7
50 45-71
2-257
3
50 27 24-5
13-591
3
3345
7
51 9-75
2-119
1
45 56 29-4
13-617
1
3346
2727
938
5-6
51 11-84
1-606
1 1
33 50 26-1
13-620
1 1
3347
8-9
51 35-70
1-606
9,
33 48 8-7
13-645
2
3348
7-8
51 51-58
2-060
4
44 7 49-9
13-662
4
3349
7-8
52 19-27
2-074
4
44 28 46-7
13-691
4
3350
6 7
52 23-73
2-303
5
51 54 44-4
13-696
5
3351
7
52 24-62
2-202
3
48 24 38-5
13-697
4
3352
6
52 24-96
1-916
6
40 16 18-6
13-697
6
3353
7-8
52 26-21
2-124
1
45 56 45-0
13-698
1
3354
7
52 26-58
0-980
6
25 2 27-1
13-699
6
3355
7-8
52 27-23
1-687
4
35 14 44-9
13-699
4
3356
7-8
52 30-93
2-068
3
44 17 40-3
13-703
3
3357
6
52 39-91
2-264
6
50 29 18-0
13-713
6
3358
8
52 45-24
1-656
6
34 36 46-1
13-718
6
3359
8
52 54-59
0-502
4
20 46 51-0
13-728
4
3360
7
20 53 7-28
+ 2-120
1
45 44 23-3
13-742
1
98
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
II
S S
'
Wollaston.
13
1
c
&
-a
S
1
<
Flamsteed's No.
and Bayer's
Character.
Magnitude.
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
3361
8-9
h m 3
20 53 7-37
+ 1-683
2
o / //
35 5 5-3
IS"- 742
2
3362
3363
32
2732
437
-
59 Cygni /i
5
8
53 21-94
53 23-00
2-034
0-975
5
4
43 12 58-1
24 54 13-8
13-757
13-758
6
4
3364
7
54 11-03
1-674
11
34 47 50-4
13-809
11
3365
7
1
54 23-90
1-712
5
35 31 15-4
13-823
5
3366
3367
2735
446
459
60 Cygni
6
6
54 32-98
55 3-63
2-087
2-293
8
6
44 35 11-0
51 14 7-0
13-832
13-865
8
6
3368
8
55 4-17
1-688
5
34 58 3-3
13-865
5
3369
8
55 13-59
+2-075
2
44 10 31-2
13-875
2
3370
3371
2754
463
i.43
939
-
76 Draconis
5
6
55 35-07
55 36-97
-3-628
+ 2-137
6
6
8 10 57-7
45 57 13-6
13-898
13-900
6
6
3372
2740
455
6-7
55 42-65
+ 2-318
5
52 5 19-0
13-906
5
3373
2749
941
480
5
55 48-72
2-296
6
10 10 2-2
13-912
6
3374
7
55 49-62
+ 2-144
4
46 8 15-0
13-913
4
3375
7
56 45-13
1-630
6
33 40 29-1
13-971
6
3376
465
6
56 45-50
+ 2-239
6
49 7 6-4
13-972
6
3377
6-7
56 48-84
0-555
6
14 48 41-4
13-975
6
3378
6-7
56 54-52
+ 1-652
6
34 4 37-4
13-981
6
3379
7
57 14-46
1-944
5
40 24 0-7
14-002
5
3380
8
57 14-79
2-092
4
44 25 10-3
14-002
4
3381
8
57 47-07
2-104
3
44 42 10-6
14-036
3
3382
8-9
57 59-27
1-645
3
33 49 28-8
14-049
3
3383
6
57 59-28
+ 1-824
6
37 27 59-7
14-049
6
3384
7
57 59-95
0-484
5
15 1 16-8
14-050
5
3385
3386
35
2746
472
943
62 Cygni I
4
7-8
58 1-29
58 8-52
+ 2-174
1-776
10
4
AR xn 31'H
46 49 30-9J
36 24 27-7
14-051
14-059
20)
30J
4
3387
7
58 22-46
1-735
6
35 31 17-4
14-073
6
3388
7-8
58 24-34
1-946
2
40 17 0-2
14-075
2
3389
7-8
58 37-16
0-937
24 2 21-7
14-088
5
3390
8
58 46-12
1-956
9
40 29 40-8
14-097
2
3391
48fi
7
59 13-21
2-050
5
42 57 6-6
14-126
5
3392
8-9
59 13-97
1-646
3
33 41 20-6
14-126
3
3393
8
20 59 20-84
1-723
4
35 10 5-9
14-133
4
3394
3395
36
2750
491
948
63 Cygni /*
5-6
7-8
21 3-75
21 35-29
2-059
+ 1-918
6
4
43 6 38-5 .
39 20 3-5
14-178
14-210
6
4
GIIOOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
w >,
- ,
V
11
I
Wollaston. 1
T3
O
fc
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude. 1
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
3431
8
h m s
21 12 54-27
+ 2-051
1
41 ll' ll"-l
14-949
1
3432
6
12 56-68
+ 2-055
6
41 17 21-5
14-952
6
3433
7
13 4-96
1-074
6
12 7 12-3
14-960
6
3434
7
13 34-30
+ 1-922
5
37 44 31-7
14-988
5
3435
7-8
13 45-03
2-064
9
41 26 59-4
. 14-999
2
3436
7-8
13 51-61
1-927
4
37 49 32-5
15-005
4
3437
3838
8
2786
105
963
489
5 Cephei a,
3
7
14 1-89
14 28-56
1-418
2-156
13
3
98 n ' 6 ~l
28 13 . j
44 4 30-9
15-015
15-041
331
47j
3
3439
7
14 34-08
2-263
9,
47 39 38-0
15-046
2
3440
7
14 37-34
1-774
5
34 18 34-0
15-049
5
3441
6
15 24-69
2-071
6
41 25 17-5
15-095
6
3442
3443
9
2788
117
116
964
6 Cephei
5-6
7-8
15 24-69
15 25-04
1-260
2-327
6
4
25 55 52-0
49 52 28-3
15-095
15-095
6
4
3444
7-8
15 26-27
2-333
4
50 6 37-5
15-096
4
3445
7
15 26-48
+ 1-777
5
34 15 52-2
15-096
6
3446
6-7
15 37-03
1-130
6
11 48 59-1
15-106
6
3447
7-8
15 53-67
+ 2-070
3
41 18 58-6
15-122
4
3448
8
16 1-24
1 -438
2
28 16 44-1
15-129
2
3449
7-vS
16 15-75
2-231
4
46 17 27-5
15-143
4
3450
8
16 17-79
2-076
3
41 25 49-8
15-145
3
3451
8
17 31-88
+ 2-243
3
46 31 20-4
15-215
3
3452
2796
137
5-6
17 33-96
0-477
6
13 47 21-3
15-217
6
3453
6
17 36-10
+ 2-000
6
39 9 21-0
15-219
6
3454
9
17 55-54
2-240
2
46 21 57-7
15-237
2
3455
8
17 55-62
2-179
2
44 19 27-6
15-237
2
3456
9
18 0-68
2-242
2
46 25 7-7
15-243
2
3457
8
18 9-57
2-085
3
41 25 19-3
15-251
3
3458
n
1
18 17-45
2-088
6
41 29 31-4
15-258
5
3459
2792
140
6
18 21-13
2-174
6
44 6 15-0
15-262
6
3460
8
18 52-99
2-246
4
46 25 19-4
15-292
4
3461
7
19 10-48
2-283
3
47 41 51-8
15-308
3
3462
7-8
19 32-36
1-964
3
37 57 25-5
15-329
3
3463
7
19 46-00
2-282
5
47 35 20-3
15-342
5
3464
8
19 48-15
2-097
4
41 32 22-8
15-344
4
3465
8
21 19 52-98
+ 2-236
3
45 56 10-1
15-348
3
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
.101
No.
Hevelius.
.-
I 5 !
A S
01 ~
PQP5
'
a
s
Wollaston.
T3
1
Argelander.
Flamsteed's No.
and Bayer's
Character.
Magnitude.
light Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
3466
7-8
h m s
21 20 13-02
+ 1-973
3
38 4' 20"- 8
15-367
3
3467
156
6
20 29-47
1-968
6
37 55 23-0
15-382
6
3468
7-8
20 44-00
2-291
2
47 44 41-5
15-396
2
3469
7
21 58-14
2-244
5
45 54 13-2
15-465
5
3470
6
22 3-54
2-261
6
46 29 20-5
15-470
6
3471
166
6
22 9-66
1-659
6
31 4 26-2
15-476
6
3472
3473
2799
168
968
71 Cygni g
6
7
22 26-78
22 35-57
2-199
1-832
6
6
44 17 34-5
34 26 6-3
15-492
15-500
6
6
3474
170
6-7
22 54-33
1-878
6
35 24 34-5
15-517
6
3475
7
23 16-05
2-252
5
45 57 20-8
15-537
5
3476
7-8
23 33-83
+ 1-985
4
37 53 48-2
15-554
4
3477
7
23 48-41
1-489
6
10 28 0-0
15-567
4
3478
6-7
23 54-65
0-240
6
14 16 23-4
15-572
6
3479
7
23 55-93
0-375
5
13 43 43-2
15-574
5
3480
6
24 0-71
+ 1-987
6
37 52 26-6
15-579
6
3481
3482
2805
185
v. 46
7 Cephei
6
7
24 4-58
24 15-04
1-181
2-315
6
5
24 1 4-4
48 7 58-9
15-583
15-592
6
5
3483
9
24 24-30
2-271
3
46 28 29-4
15-600
3
3484
9
24 30-20
2-275
9,
46 36 7-4
15-606
2
3485
6
24 52-20
+ 2-021
6
38 38 30-5
15-626
6
3486
7
24 56-79
0-087
6
14 51 12-3
15-630
6
3487
6
25 4-67
+ 2-006
6
38 12 53-9
15-637
6
3488
8
25 39-72
1-561
1
28 57 5-7
15-669
1
3489
5
25 46-12
1-647
6
30 22 32-5
15-674
6
3490
8
25 53-66
2-006
1
38 5 9-7
15-682
1
3491
8
25 54-96
2-003
1
38 7-1
15-682
1
3492
8
25 55-06
1-803
3
33 20 2-3
15-682
3
3493
3494
11
2811
198
iv.36
969
491
8 Cephei ft
3
8
26 9-48
26 46-08
0-818
1-807
9
3
20 16 \tl}
33 17 58-1
15-695
15-729
'?}
3
3495
3496
42
2810
202
971
73 Cygni g
4
8
26 50-58
26 55-72
2-247
1-979
5
3
45 14 37-4
37 14 58-5
15-734
15-738
9
3
3497
7-8
27 15-05
1-078
4
22 32 37-4
15-755
4 '
3498
7
27 17-72
2-409
1
51 24 26-7
15-758
1
3499
6-7
27 49-00
2-304
6
47 8 25-6
15-786
6
3500
6
21 27 55-10
+ 2-057
6
39 8 40-5
15-791
6
102
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
OS >>
J-, J
*13
$ 2
5
9
5
Wollaston. 1
T3
a
I
Argelander.
Flamsteed's No.
and Bayer's
Character.
Magnitude.
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
3501
2832
h m s
21 28 10-93
4-069
6
6 33' 16"-5
15-806
7
3502
8-P
28 21-73
+ 1-082
9
22 27 39-7
15-816
2
3503
6
28 29-20
0-816
6
20 56-2
15-822
6
3504
7
28 52-04
2-414
1
51 22 1-2
15-843
1
3505
221
7-8
28 54-04
1-594
7
29 2 37-7
15-844
7
3506
8-9
28 54-76
2-289
9
46 25 9-4
15-845
2
3507
8
28 59-01
-f-2-293
3
46 31 51-6
15-849
3
3508
972
6
29 8-39
0-108
5
14 25 55-6
15-857
5
3509
3510
2818
222
493
74 Cygni
6
8-9
29 20-30
29 54-67
+ 2-393
+ 1-833
6
4
50 26 7-6
33 22 48-6
15-868
15-898
6
4
3511
3512
9,9,8
974
5-6
6
30 0-18
30 6-11
1-405
+ 2-422
6
6
10 18 27-6
51 32 1-2
15-903
15-908
6
6
3513
9
30 11-03
1-835
2
33 22 48-2
15-913
3
3514
7
30 11-27
2-287
.5
46 9 7-5
15-913
5
3515
7
30 27-11
2-382
5
49 46 0-6
15927
5
3516
7
30 29-71
1-256
, r >
24 7 7-5
15-929
5
3517
7
30 42-18
1-255
5
24 4 27-7
15-940
5
3518
7-8
30 42-79
+ 2-386
3
49 53 16-7
15-941
3
3519
7
32 42-86
0-465
5
12 54 13-4
15-941
5
3520
8
30 43-01
+ 2-012
4
37 28 22-5
15-941
4
3521
8
30 48-18
2-420
4
51 20 32-2
15-945
4
3522
8-9
30 49-18
2-011
3
37 27 10-9
15-946
3
3523
6
31 19'44
1-989
6
36 48 34-0
15-973
6
3524
7
31 40-00
2-143
5
41 3 27-7
15-991
fr
3525
7
31 41-28
2-137
2
40 53 29-1
15-992
2
3526
8-9
31 50-00
1-842
2
33 17 34-0
16-000
2
3527
6-7
31 52-41
1-138
7
22 37 53-9
16-002
7
3528
941
7-8
32 6-95
1-591
3
28 33 16-9
16-014
3
3529
7
32 10-45
2-425
5
51 20 31-0
16-018
5
3530
7
32 12-28
2-013
5
37 16 29-3
16-019
5
3531
8-9
32 18-17
2-304
9
46 24 52-0
16-025
2
3532
6-7
32 33-66
2-305
5
46 25 27-7
16-039
S
3533
7
32 44-00
2-063
2
38 32 44-5
16-047
2
3534
3535
12
2826
2830
246
247
979
75 Cygni
9 Cephei
6
5-6
32 44-49
21 32 49-11
2-336
+ 1-611
6
11
47 35 4-0
28 46 21-7
16-048
16-052
6
11
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
103
No.
Hevelius.
_ >>
J.%
z s
P3M
D
SB
Wollaston.
13
O
CM
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude. 1
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
3536
3537
13
:
248
*
Cephei
6-7
6
h m s
21 33 4-15
33 20-01
+ 1- 854
2-156
12
3
33 22 l"-3
41 10 32-3
16-064
16-078
12
3
3538
8-9
33 20-03
1-157
2
22 40 6-8
16-078
2
3539
8-9
33 22-81-
2-027
2
37 27 33-3
16-081
2
3540
-
9
33 33-31
1-858
2
33 22 23-8
16-090
2
3541
8
33 35-15
2-432
3
51 23 10-2
16-091
3
3542
8-9
33 47-67
1-650
3
29 18 3-8
16-103
3
3543
3544
2831
252
76 Cygni
6
6
33 56-09
34 25-98
2-402
1-976
11
6
50 3 11-2
35 59 17-6
16-110
16-136
11
6
3545
8
34 27-96
1-860
4
33 16 39-7
16-137
4
3546
7-8
34 29-96
2-434
4
51 20 12-9
16-139
4
3547
3548
2836
259
77 Cygni
6
6
34 44-61
34 46-98
+ 2-399
8-965
13
7
49 47 10-6
3 46 17-2
16-152
16-154
13
7
3549
961
7-8
34 54-66
+ 2-400
9
49 48 58-3
16-160
9
3550
7
34 56-11
1-743
5
31 6 33-8
16-162
5
3551
8-9
35 2-11
1-664
3
29 21 23-8
16-167
3
3552
7
35 2-29
2-367
6
48 25 21-7
16-167
6
3553
3554
44
2845
263
982
80 Cygni ^
4
7
35 21-25
35 28-04
2-117
2-080
9
6
39 40 26-1
38 34 19-5
16-183
16-189
12
6
3555
3556
2841
265
B. F. 2976
6-7
35 28-82
35 44-29
2-400
2-171
9
2
49 42 33-9
41 15 52-0
16-.190
16-203
9
2
3557
977
7-8
36 27-99
1-868
4
33 7 45-0
16-241
4
3558
2854
497
7
36 28-65
0-862
4
19 32 53-4
16-242
4
3559
6-7
36 39-96
2-083
7
38 27 35-8
16-251
7
3560
8
36 59-39
0-855
2
19 26 13-2
16-267
2
3561
6-7
37 2-53
1-799
6
31 35 45-5
16-270
6
3562
8-9
37 2-81
2-443
9,
51 19 32-0
16-270
2
3563
6-7
37 14-02
2-262
5
44 27-6
16-280
5
3564
6
38 31-65
2-099
19,
38 36 15-2
16-345
11
3565
6
38 44-52
2-368
6
47 48 47-5
16-356
6
3566
3567
3568
15
45
2856
2855
292
295
ii.54
989
990
1 1 Cephei
81 Cygni ?r 2
5
5
7-8
39 5-17
39 46-79
39 51-15
0-899
2-202
12-112
5
3
2
19 33 43-5
41 33 57-6
38 45 3-8
16-374
16-409
16-412
4
7
2
3569
3570
14
2857
297
991
501
10 Cephei v
5
8
39 57-94
21 40 12-34
1-727
+ 2-351
6
2
29 45 11-3
46 51 53-6
16-418
16-430
6
2
104
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelitis.
. >>
~Z ~
II
"S
|
Wollaston. I
T3
tk
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude.
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
3571
6
h in s
21 40 27-19
+ 2-469
6
51 55' 20-9
16-442
6
3572
3573
16
Cephei
2861
302
ii.55
992
78 Draconis
5
7
40 42-81
40 45-38
0-794
2-468
6
9
18 33 1-3
51 47 48-4
16-456
16-457
6
2
3574
7-8
41 38-25
2-473
9
51 52 53-1
16-501
2
3575
9
41 45-16
2-043
9
36 29 39-9
16-507
2
3576
3577
2862
306
12 Cephei
6
6-7
41 49-38
42 3-26
1-765
2-204
6
6
30 11 10-1
41 12 16-1
16-511
16-522
6
6
3578
7
42 17-79
2-179
7
40 22 1-2
16-535
7
3579
7
42 35-55
2-467
9
51 26 30-7
16-549
2
3580
313
7
42 39-80
2-365
5
46 59 34-0
16-553
5
3581
q
42 51-84
2-071
9
37 3 36-0
16-563
2
3582
8-9
42 54-44
2-051
9
36 30 5-7
16-564
2
3583
8-9
42 58-51
2-058
3
36 41 10-5
16-568
3
3584
6
43 13-87
2-467
6
51 20 57-4
16-588
6
3585
7-8
43 18-68
2-222
3
41 34 32-5
16-585
3
3586
6
43 18-87
2-114
6
38 11 11-2
16-585
6
3587
8-9
43 25-09
2-060
4
36 38 37-8
16-589
4
3588
6
43 27-32
1-511
5
25 42 43-5
16-591
5
3589
7-8
43 36-14
2-220
4
41 26 48-3
16-598
4
3590
994
6
43 37-77
1-089
6
20 43 42-9
16-600
6
3591
6
44 42-48
1-404
7
24 5 22-1
16-652
7
3592
7
44 44-87
2-255
5
42 27 5-9
16-655
5
3593
8
44 54-46
2-253
3
42 20 22-7
16-662
9
3594
7 8
44 56-59
1-522
3
25 39 7-6
16-664
3
3595
7
45 19-73
2-431
6
49 17 10-8
16-683
5
3596
328
7-8
45 24-71
+ 1-747
4
29 16 21-1
16-687
4
3597
45 29-89
2-233
4
7 56 50-5
16-691
4
3598
7-8
45 44-81
+ 2-017
4
35 5 53-4
16-703
4
3599
2866
7
45 45-65
2-017
5
35 5 35-9
16-704
5
3600
7
45 53-17
2-060
5
36 12 29-0
16-709
5
3601
331
7
45 59-41
2-047
5
35 51 4-0
16-714
5
3602
8
46 15-90
0-945
9
19 7 33-5
16-728
9
3603
7-8
46 30-15
1-572
4
26 10 9-6
16-739
4
3604
7-8
46 34-17
1-422
5
24 3 3-0
16-742
5
3605
2867
335
7
21 46 40-89
+ 2-090
5
36 53 40-9
16-748
5
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
Bessel's
Bradley.
'i
Wollaston.
1
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude. 1
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
3606
3607
17
2868
336
Cephei
5
7
h m s
21 46 43-21
46 50-30
+2*-007
1-563
6
5
34 40' 58-5
25 59 24-1
-16-749
16-755
6
5
3608
7
46 51-89
1-505
5
25 8 14-1
16-757
5
3609
6-7
47 10-95
1-702
5
28 10 50-2
16-772
5
3610
7
47 52-78
2-299
6
43 26 43-1
16-805
6
3611
2871
346
7
48 15-07
2-103
5
36 57 54-7
16-822
5
3612
7-8
48 20-79
1-719
5
28 16 54-5
16-830
5
3613
8
48 25-59
1-720
4
28 17 43-3
16-831
4
3614
8
48 30-68
2-096
3
36 43 11-1
16-835
3
3615
8
48 36-43
0-964
3
19 31-3
16-839
3
3616
8
48 37-83
1-783
3
29 24 54-2
16-841
3
3617
6
48 48-01
2-130
12
37 39 17-9
16-849
12
3618
7-8
48 53-41
2-304
7
43 25 46-2
16-852
4
3619
7-8
49 4-92
2-304
4
43 23 51-8
16-862
3
3620
8
49 18-03
1-006
2
19 17 9-2
16-872
2
3621
6
49 39-52
1-788
6
29 21 25-5
16-888
6
3622
9
49 39-56
2-130
2
37 28 32-6
16-890
9,
3623
7-8
49 58-07
2-414
4
47 40 59-0
16-903
4
3624
9
50 0-75
2-130
2
37 26 21-3
16-906
9,
3625
7
50 11-45
0-974
5
18 54 25-1
16-914
5
3626
7
50 12-75
2-226
5
40 24 44-9
16-915
5
3627
7-8
50 15-41
2-312
5
43 28 44-1
16-917
5
3628
7
50 19-68
2-417
4
47 45 10-2
16-921
4
3629
7-8
50 20-80
1-543
5
25 10 31-5
16-921
5
3630
7
50 29-49
2-416
4
47 39 51-3
16-928
4
3631
3632
2880
357
iii.56
79 Draconis
7
8
50 30-24
50 47-31
0-757
2-227
5
2
17 11 47-1
40 20 27-6
16-928
16-942
5
9.
3633
360
5
51 17-50
1-688
6
27 16 35-6
16-965
6
3634
8
51 31-28
1-817
2
29 36 28-3
16-976
9,
3635
7-8
51 55-39
1-570
5
25 18 36-6
16-995
5
3636
7-8
52 7-42
1-543
5
24 52 42-2
17-004
5
3637
7
52 19-71
1-535
5
24 44 53-4
17-014
5
3638
368
7-8
52 26-31
2-278
4
41 47 0-4
17-019
4
3639
7
52 32-16
1-539
5
24 45 59-2
17-024
5
3640
7-8
21 53 7-63
+ 2-284
4
41 51 26-2
17-051
4
106
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
00 >,
*>
S! S
DO CO
o> :-.
MM
"S
I
Wollaston. 1
1
Argelander. I
Flamsteed's No.
and Bayer's
Character.
Magnitude. 1
Right Ascension
Jan. 1, 1810.
Annual
Precession
No
of
Obs
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession
No.
of
Obs.
3641
9
h m s
21 53 8-43
s
+ 2-130
2
o / //
36 50 5-2
17-0/51
9
3642
8
53 12-24
1-814
4
29 14 40-3
17-054
A
3643
8
53 15-48
2-130
3
36 48 O'l
17-056
Q
3644
6-7
53 18-05
1-760
5
28 12 37-8
17-059
3645
8
53 23-52
2-099
4
35 53 18-9
17-063
A
3646
8-9
53 47-00
1-761
1
28 8 57-9
17-081
1
3647
53 54-48
+ 2-407
1
46 34 15-7
17-087
1
3648
2894
7-8
54 1-41
0*410
5
11 21 1-0
17-092
3649
9
54 8-25
4-2-134
2
36 45 4-5
17-097
o
3650
7-8
54 25-13
2-409
1
46 34 7-1
17-110
1
3651
89
54 42-91
2-143
4
36 55 0-7
17-124
A
3652
383
6
54 53-63
2-181
7
38 1 50-1
17-133
7
3653
6
54 56-90
2-446
6
48 5 58-4
17-135
3654
7-8
54 59-05
1-786
5
28 25 25-8
17-136
A
3655
6
55 17-11
2-406
6
46 15 46-2
17-150
3656
8
55 34-58
1-840
3
29 21 24-0
17-162
q
3657
3658
2892
385
386
!4Cephei
6
7
55 41-78
55 42-45
2-002
2-001
6
4
32 54 48-0
32 51 53-3
17-168
17-168
6
4
3659
8-9
55 43-44
2-408
2
46 15 35-6
17-169
2
3660
2897
6-7
55 57-12
0-653
7
15 54 45.3
17-180
7
3661
8-9
56 1-56
1-581
9
24 49 52-5
17-183
9
3662
7-8
56 8-94
2-408
3
46 1 1 26-3
17-189
Q
3663
7-8
56 10-67
2-412
3
46 19 30-8
17-190
3
3664
392
7
56 24-66
2-418
7
46 34 19-4
17-201
5
3665
3666
19
2900
394
i.57
997
504
16Cephei
5-6
7-8
56 28-64
56 34-33
0-921
+ 2-126
4
q
17 43 24-3
36 2 11-0
17-204
17-207
4
9
3667
6
56 53-63
0-586
6
10 35 52-9
17-222
6
3668
8-9
57 6-39
+ 1-609
5
25 4 42-0
17-231
5
3669
6
57 25-34
2-355
6
43 41 11-8
17-245
Q
3670
3671
2902
399
''
15Cephei
6
7
57 42-80
57 44-47
1-941
1-601
6
6
31 6 14-1
24 51 13-9
17-258
17-259
6
6
3672
.
6-7
57 44-77
2-369
6
44 10 27-1
17-260
6
3673
7-8
58 0-42
2-237
4
39 13 6-2
17-271
4
3674
401
6
58 1-51
1-942
6
31 3 7-1
17-272
6
3675
404
6-7
21 58 9-57
+2-409
6
45 48 29-1
-17-278
6
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
Bessel's
Bradley.
N
N
CO
Wollaston. 1
T3
fi
Argelander. I
Flamsteed's No.
and Bayer's
Character.
Magnitude. 1
Right Ascension
Jan. 1, 1810.
Annual
Precession
No.
of
Obs
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession
No.
of
Obs.
3676
3677
'
2906
18 Cephei
5
7
h m s
21 58 11-49
Q ]A. Qfi
+ ! S -783
2-495
6
2
o / //
27 48 6-4
46 98 ft-*;
17-278
17-981
6
2
3678
3679
18
2907
408
1001
17 Cephei I
5
6
58 17-24
KO on.ni
1-699
2-419
5
6
26 17 43>2
ZC 17 41-8
45 54 9^-fi
17-283
n-98fi
281
$
3680
7-8
Q 2-O
2-335
5
42 41 9'}-9
17-28Q
5
3681
6-7
KQ TI.^Q
2-408
6
45 40 91-fi
17-294
6
3682
8
58 44-78
1-880
3
29 35 1-1
17-304
3
3683
8-9
5Q 0-68
1-646
3
25 19 5Q-2
17-316
3
3684
8-9
5Q 1-Q5
1-637
3
25 10 56-8
17-316
3
3685
3686
3687
20
2911
2910
415
416
20 Cephei
19 Cephei
6
6
7-8
59 14-02
59 17-54
Q Ql .1 7
1-811
1-839
2-94^
6
6
5
28 8 19-5
28 38 32-1
3Q 7 3-9
17-325
17-327
17-338
6
6
5
3688
8-9
5Q *39-?o
1-64Q
3
25 16 34-4
17-338
3
3689
8
21 5Q 51-29
2-205
3
37 46 32-0
17-352
3
3690
6-7
22 n 24-T9
2-90 1 }
6
37 37 1 -fi
17-376
6
3691
3692
21
4
Cephei
6
6
46-16
1 10-54
2-009
2-358
6
6
32 5 0-3
42 5Q 34-7
17-393
17-410
6
6
3693
8
1 16-45
2-100
2
34 20 56'5
17-414
2
3694
8
6
1 53-63
2-470
6
47 44 35-2
17-442
6
3695
8-9
1 53-85
1-918
9,
29 48 17-0
17-442
2
3696
8-9
2 1 5- 52
1-923
2
29 50 47-8
17-457
2
3697
8
2 22-38
1-917
5
29 40 46-2
1 7-462
5
3698
8
2 37-04
1-Q2Q
4
29 54 24-2
17-473
4
3699
7
3 1-87
2-368
4
43 1 2-4
17-490
4
3700
6
3 10-43
2-47Q
6
47 54 3-2
17-497
6
3701
7-8
3 10-94
1 -141
5
18 42 4-3
17-497
5
3702
ii.58
7-8
3 36-50
1-131
5
18 33 27-8
17-515
5
3703
5
Q 47-59
2-298
6
40 6 43-2
17-523
6
3704
24
6-7
4 3-09
1-787
6
26 48 34-9
17-534
6
3705
7-8
4 3-37
2-257
5
38 37 15-9
17-534
5
3706
3707
22
2925
26
1007
21 Cephei
4
6
4 16-48
4 25-24
+ 2-062
1-499
7
6
** 56 6 t)
8 2 54-3
17-543
17-549
9 1
g
3708
7
4 27-10
+2-256
7
38 30 14-8
17-551
71
3709
2935
6
4 31-26
1-495
6
8 2 54-3
17-554
5
3710
8-9
22 4 40-71
+2-170
2
35 39 59-4
-17-561
2
108
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
&
tt
s s
--
'A
Wollaston. I
T3
a
O
OH
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude. 1
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
3711
7
h m s
22 4 46*71
s
+ 0-852
5
o / //
16 11 45-8
17-565
5
3712
2926
6
4 58-28
2-118
6
34 6 10-2
17-573
6
3713
3714
'
2927
34
22 Cephei A
6
7-8
5 4-60
5 23-77
2-020
2-181
6
5
31 31 11-8
35 50 16-2
17-577
17-591
6
5
3715
7
5 24-33
2-037
6
31 51 19-5
17-591
6
3716
3717
1
Lac.
36
1009
511
B. F. 3044
5
6-7
5 44-10
6 1-16
2-555
2-442
6
6
51 13 26-7
45 29 52-7
17-605
17-617
6
6
3718
3719
25
2932
40
iii.59
1008
1010
24 Cephei
5
6
6 7-15
6 16-92
1-175
1-395
6
7
18 35 36-4
20 48 15-5
17-621
17-628
6
7
3720
7-8
6 17-95
2-180
5
35 37 26-6
17-628
5
3721
7-8
6 24-15
2-176
5
35 28 3-5
17-632
5
3722
7-8
6 27-25
2-271
4
38 32 48-1
17-634
4
3723
3724
2934
45
iii.60
80 Draconis
6
7-8
6 29-79
6 38-70
1-204
2-038
6
4
18 49 22-3
31 38 25-8
17-636
17-642
6
4
3725
6
6 46-25
2-497
6
47 59 6-8
17-647
6
3726
7-8
7 9-45
2-272
4
38 25 35*4
17-663
4
3727
8-9
7 22-35
2-183
3
35 29 24-7
17-672
3
3728
3729
23
2937
54
55
1013
23 Cephei
4
6-7
8 3-12
8 10-45
2-135
2-460
6
6
3354 ^J
45 51 14-8
17-701
17-706
16}
16J
6
3730
7-8
8 31-22
2-062
2
31 49 35-4
17-720
9
3731
61
7
9 35-87
2-141
5
33 43 29-6
17-764
5
3732
8
9 57-76
2-078
1
31 56 10-2
17-779
1
3733
64
8
10 2-68
1-223
4
18 28 44-4
17-782
4
3734
7-8
10 19-24
2-362
4
41 5 10-3
17-793
4
3735
7
10 25-83
0-688
11
14 28 52-4
17-797
11
3736
8
10 42-19
2-531
2
48 48 19-5
17-808
2
3737
8-9
11 0-49
2-216
2
35 40 0-4
17-820
2
3738
6
11 18-37
2-295
6
38 17 35-0
17-832
6
3739
6
11 37-07
1-752
7
24 49 10-5
17-845
7
3740
7-8
11 45-07
2-298
9
38 16 36-3
17-850
2
3741
3742
2947
75
25 Cephei
6
7
12 1-40
12 13-69
1-934
2-430
6
5
28 8 44-3
43 28 41-2
17-861
17-869
6
5
3743
8-9
12 31-50
2-376
1
41 6 59-3
17-881
1
3744
8-9
13 7-45
2-376
1
40 58 18-4
17-904
1
3745
8-9
22 13 8-45
+2-389
1
41 28 52-1
17-905
1
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
109
No.
Hevelius.
09 >.
?-. *>
8?
(A C(3
MM
S
Wollaston. 1
'O
1
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude. 1
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
3746
80
5
h m s
22 13 8-86
+ 2-179
5
O 1 ii
34 2 5-8
17-'c)06
AJ
3747
3748
5
2948
79
1019
2 Lacertse
5
8-9
13 11-54
1 Q IQ.fiQ
2-455
2-276
3
3
44 25 0-0
37 8 15-4
17-907
17.01-}
7
Q
3749
8-9
13 30-62
2-233
3
35 39 23-5
17-920
}
3750
6-7
13 4T-73
2-546
6
48 52 34-6
17.900
6
3751
6
13 VJ'Ti
2-516
4
47 12 31-8
17-938
A
3752
7-8
13 5Q-42
2-215
4
34 58 6-5
17-938
4
3753
8
15 17-97
2-554
9
48 53 53-1
17-989
2
3754
8-9
15 37-25
0-991
3
15 48 4-4
18-001
3
3755
8
15 50-66
2-252
3
35 43 29-7
18-010
3
3756
96
7
15 58-10
0-796
6
14 27 58-2
18-014
6
3757
99,
6-7
15 59-80
2-231
6
34 59 42-3
18-016
6
3758
5-6
16 0-58
2-189
6
33 40 24-6
18-016
6
3759
6-7
16 4-69
2-365
6
39 45 47-3
18-020
6
3760
6
16 5-67
1-769
7
24 15 5-0
18-020
7
3761
3762
26
Cephel.
2956
95
1021
514
3 Lacertse
4
7
16 6-22
16 25-41
2-338
0-882
6
5
38 43 HI]
14 56 33-1
18-021
18-030
9 1
44j
5
3763
8-9
16 29-69
2-258
3
35 45 10-2
18-034
3
3764
3765
'
2958
99
1022
..
4 Lacertse
5
8
16 49-82
17 2-44
2-411
2-491
5
4
41 29 2-4
45 10 35-8
18-047
18-055
6
4
3766
7
17 Q-05
0-879
s
14 49 54-9
18-060
5
3767
6
17 28-34
2-372
6
39 42 26-3
18-072
6
3768
-Q
17 40-26
2-269
3
35 50 8-7
18-079
3
3769
7-8
17 46-16
2-395
5
40 33 39-3
18-084
5
3770
8
18 15-50
0-655
2
13 22 49-5
18-101
2
3771
7. 8
18 23-62
2-312
5
37 8 50-2
18-107
5
3772
7-8
18 31-85
2-309
6.
37 1 8-7
18-112
5
3773
8-9
18 35-88
2-314
3
37 10 55-6
18-114
3
3774
8-9
18 53-69
2-315
3
37 8 24-7
18-126
3
3775
8
19 4-51
2-308
4
36 51 37-2
18-132
4
3776
8-9
19 10-29
0-917
3
14 49 22-8
18-136
3
3777
115
6
19 25-70
1-983
7
27 38 10-1
18-146
7
3778
7-8
19 27-45
1-082
8
15 57 28-1
18-147
8
3779
7
20 7-38
2-383
5
39 28 27-3
18-171
5
3780
7
22 20 17-95
+ 2-382
5
39 23 27-8
-18-178
5
110
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
50 >>
Z-~ *>
S^
$ s
PQPQ
"3
9
-
Wollaston. 1
"o
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude.
Right Ascension.
Jan. 1, 1810.
Annual
Recession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
'recession.
No.
of
Obs.
3781
8-9
h m 3
22 20 43-28
+ 1-612
3
21 4 15-"6
18'-'l93
3
3782
7
20 47-54
2-392
4
39 39 41-6
18-196
4
3783
3784
'
2969
128
26 Cephei
6
8-9
20 59-59
21 11-45
.1-912
1-135
6
3
25 50 5-1
16 6 56-6
18-204
18-211
6
3
3785
8-9
21 16-90
2-413
3
40 25 30-3
18-214
3
3786
7
21 25-82
2-391
4
39 27 41-4
18-220
4
3787
3788
2970
132
v
5 Lacertae
4
8
21 37-64
21 49-58
2-477
1-149
3.
3
43 15 45-4
16 8 15-2
18-227
18-233
6
3
3789
6
21 56-79
2-325
10
36 43 25-2
18-238
10
3790
7-8
22 2-27
2-089
5
29 30 54-8
18-241
5
3791
3792
3793
27
2973
2971
135
136
137
1027
519
27 Cephei 2
6 Lacertae
4
5
7
22 7-95
22 18-26
22 18-54
2-201
2-568
2-375
5
4
5
32 33 16-9
47 50 51-8
38 33 19-0
18-245
18-251
18-251
6
6
5
3794
8
22 34-96
2-610
4
50 15 7-0
18-261
4
3795
q
22 42-40
0-982
3
14 47 23-5
18-265
3
3796
7
22 50-48
0-785
5
13 31 59-3
18-271
5
3797
8-9
23 7-97
2-425
3
40 27 1-6
18-281
3
3798
8
23 20-68
2-430
4
40 36 29-6
18-289
4
3799
3800
28
Cephei
2975
141
1028
7 Lacertse
4
8
23 28-85
23 40-88
2-433
2-427
7
4
,.n A^ 29-n
40 41 29-8J
40 22 43-3
18-293
18-301
26\
38j
4
3801
a
23 44-70
2-629
2
51 10 30-1
18.303
2
3802
7
23 49-97
2-100
8
29 20 57-3
18-306
8
3803
8
24 1'64
2-618
4
50 21 28-7
18-313
4
3804
6
24 3-24
2-631
5
51 11 39-1
18-314
6
3805
7-8
24 19-43
1-621
8
20 32 13-6
18-323
8
3806
7-8
24 46-03
1-648
8
20 48 5-1
18-339
8
3807
6-7
24 47-69
2-351
6
36 56 18-8
18-340
6
3808
7-8
24 59-16
2-638
4
51 24 3-9
18-346
4
3809
3810
/w'
2980
150
ii.51.
1029
28 Cephei
5
7
25 9-65
25 14-03
0-579
2-620
6
5
12 10 56-4
50 9 28-7
18-353
11-355
6
5
3811
a
25 16-91
2-442
4
40 37 10-1
18-357
4
3812
6-7
25 34-71
2-522
6
44 24 41-9
18-367
6
3813
7-8
25 35-99
1-034
5
14 44 15-9
18-368
5
3814
6
26 0-06
0-126
7
10 16 12-5
18-382
7
3815
7-8
22 26 8-85
+ 2-625
5
50 12 11-5
18-387
5
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
Ill
No.
Hevelius.
. K
il
W d
0> S
WM
'N
a
&
Wollaston.
a
CM
ij
-O
g
_<
~S
1
*
^
SH
i : -
1
eg
S
Wollaston.
w
o
CM
u
'O
js
'v
&
<
Fiamsteed's No.
and Bayer's
Character.
Magnitude.
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
3921
8
h m s
22 46 45-11
s
+ 2-594
3
O ; "
41 ^9 10-7
1 Q-09Q
Q
3922
6-7
47 11-06
0-844
12
10 ^8 99-^
1Q-041
1 9
3923
7
47 14-84
2-675
5
4 40 q.a
IQ.fMQ
^
3924
8-9
47 18-50
2-421
2
39 48 9-^
1 Q-044
o
3926
8-Q
47 19-60
2-542
3
38 23 16-9
19-045
3
3926
3927
3034
255
16 Lacertee
6
8-Q
47 44-26
47 51-74
2-713
2-696
6
2
49 24 29-5
48 2-fi
19-057
19-060
6
2
3928
3929
34
3038
258
i.46
Cephei
5-6
8-9
47 52-99
48 3-41
0-068
2-584
4
4
7 51 17-9
40 28 17-fi
19-061
l Q-Ofi*;
6
4
3930
3931
B. F. 3146
6-7
7
48 7-85
48 16-24
2-599
2-430
6
5
41 16 42-2
32 48 59-8
19-068
19-071
6
5
3932
8-9
48 25-36
2-698
1
47 50 ^i.^
1 Q-07^
1
3933
3934
B. F. 3147
6
7
48 42-14
48 48-51
2-619
2-700
6
6
42 19 42-9
48 4-5
19-083
19-086
6
Q
3935
260
7-8
48 51-08
2-745
5
51 37 28-8
19-087
5
3936
261
7
48 55-64
2-746
5
51 42 17-8
1 Q-O^Q
5
3937
7
49 15-41
2-394
4
31 3 6-0
19'OQ7
4
3938
8*9
50 15-74
2-610
3
41 9 44-1
19-124
3
3939
7-8
50 17-38
2-597
4
40 18 57-9
19- 125
4
3940
7
50 58-62
2-567
5
38 21 46-8
19-142
5
3941
9.76
7-8
50 59-05
2-574
5
38 42 44-7
19-143
5
3942
8
50 59-90
0-984
4
10 46 24-7
19-143
4
3943
8
51 6-02
2-691
2
46 23 1-1
19-146
2
3944
7-8
51 12-96
2-393
6
27 56 19-4
19-149
6
3945
6
si 23-96
2-417
6
31 12 5-0
19-1 53
6
3946
6
51 52-53
1-855
6
17 52 51-4
19-165
6
3947
6-7
51 59-64
2-686
5
45 38 33-1
19-169
5
3948
8-9
52 18-38
2-622
3
41 3 40-1
19-177
3
3949
8-9
52 24-07
2-605
3
40 12-2
19-179
3
3950
8-9
52 35-11
2-531
3
35 48 28-6
19-184
3
3951
8
52 37-63
2-705
6
46 49 12-0
19-185
3952
7-8
52 58-22
2-690
3
45 30 33-9
19-193
3
3953
8-9
53 0-01
2-539
3
36 2 20-8
19-194
3
3954
3955
2
3043
284
1053
1 Androm.
3-4
8*9
53 11-99
22 53 13-37
2-731
+ 2-709
6
4
48 41 32> 1
1 31-9]
46 53 27-8
19-199
19-199
16}
12J
4
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
115
1
No.
Hevelius.
Bessel's
Bradley.
'5
1
S
Wollaston. 1
T3
O
CM
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
i
t3
3
1
m
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs
I
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession
No.
of
Obs.
3956
7-8
h m s
22 53 27-99
+ 2*615
5
40 10' ll'-'l
19'- 206
5
3957
7
53 33-05
2-705
5
46 26 44-0
19-208
5
3958
3959
'
3045
286
2 Andromedse
6
7-8
53 52-58
53 53-64
2-729
2-431
8
4
48 15 41-8
30 49 21-7
19-216
19-217
8
4
3960
7
54 1-11
2-346
11
27 43 38-5
1Q-219
H
3961
7
54 5-45
2-714
5
46 57 40-4
19-221
5
3962
8
54 6-77
2-569
4
37 12 42-4
19-222
4
3963
7-8
54 30-62
2-582
4
37 46 27-5
19-232
4
3964
7-8
54 34-57
2-446
7
31 10 2-1
19-233
8
3965
7
54 34-93
2-546
5
35 47 4-2
19-234
5
3966
8
54 45-72
2-454
3
31 24 53-4
19-238
3
3967
7-8
54 54-08
2-327
4
26 48 35-5
19-242
4
396< Q
7
55 5-05
2-356
11
27 40 49-4
19-246
11
3969
7-8
55 11-04
+ 2-586
5
37 43 6-0
19-248
5
3970
3971
3972
3973
36
35 ?
3
3058
3052
295
293
i.47
Cephei
Cephei
3 Andromedse
5
7
5
7
55 27-78
55 34-17
55 41-08
55 45-43
-0-109
+ 2-441
2-642
1-108
5
5
5
5
6 40 16-0
30 34 33-3
40 58 44-1
10 40 37-3
19-255
19-258
19-260
19-262
6
5
5
5
3974
9
56 15-94
2-465
2
31 17 44-0
19-274
2
3975
3054
v,4Q
1060
5
56 20-93
2-238
6
23 48 50-0
19-276
6
3976
8
56 26-55
2-369
5
27 37 32-9
19-278
5
3977
7
56 54-86
2-379
6
27 47 3-4
19-290
6
3978
8
57 4-15
2-732
3
47 8 17-9
19-294
3
3979
7-8
57 12-88
2-356
4
26 55 56-4
19-297
4
3980
3067
7
57 55-66
1-088
5
10 14 29-1
19-314
3981
7
58 21-28
2-363
4
26 43 46-9
19-324
4
3982
7-8
58 21-84
2-395
5
27 48 44-2
19-324
5
3983
8
58 31-14
1-791
4
15 30 23-8
19-328
4
3984
3985
3061
3060
308
1 Cassiopeise
5-6
6-7
58 36-71
58 37-69
2-493
2-714
7
5
31 36 20-4
44 57 25-4
19-330
19-330
7
5
3986
7
58 46-81
2-620
5
38 12 33-4
19-334
5
3987
7-8
58 54-12
2-785
4
51 13 50-0
19-336
4 '
3988
3989
3990
3063
3064
311
312
537
4 Andromedae
5 Andromedse
6
6
6-7
58 59-81
59 9-33
22 59 11-09
2-712
2-675
+ 2-492
5
6
5
44 38 12-6
41 44 15-1
31 17 53-8
19-339
19-342
-19-343
5
6
5
116
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Ilevelius.
t *
^
a
-
CQCQ
S
Wollaston. 1
13
O
9*
Argelander. I
Flamsteed's No.
and Bayer's
Character.
Magnitude.
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession
No.
of
Obs.
3991
7
h m s
22 59 27-56
+ 2-736
6
46 27 52 "O
19 '3 49
6
3992
8
22 59 51-64
2-796
4
51 51 30-9
19-358
4
3993
6-7
23 5-35
2-402
5
27 23 36-1
19-363
5
3994
6
17-16
2-386
6
26 48 15-7
19-367
6
3995
1
7-8
24-98
1-895
4
15 26 43-2
19-370
4
3996
7
42-45
2-680
5
41 22 38-2
19-377
5
3997
7
57-12
2-798
5
51 33 32-2
19-383
5
3998
3999
4000
3071
3070
6
7
-
538
2 Cassiopeise
6 Andromedee
6
6
8
1 38-51
I 41-90
1 44-20
2-522
2-759
2-525
7
12
1
31 41 46-1
47 28 28-6
31 44 27-1
19-396
19-399
19-400
6
12
1
4001
8
1 48-10
2-418
3
27 17 51-4
19-402
3
4002
4003
4004
37
3074
8
iii.62
1066
33 Cephei v
6
7-8
7-8
1 53-18
2 12-51
2 18-89
1-870
2-761
2-780
11
7
3
15 38 20-6
47 22 21-3
49 9 14-8
19-404
19-410
19-413
12
7
3
4005
6
2 27-95
2-315
6
23 47 17-2
19-416
6
4006
7
2 39-37
2-644
5
37 58 16-7
19-420
5
4007
7
2 48-62
2-678
8
40 15 34-6
19-424
8
4008
8
3 19-73
1-283
5
10 23 29-8
19-435
5
4009
7-8
3 32-94
1-302
6
10 27 29-4
19-439
6
4010
7-8
3 49-07
2-665
4
38 48 3-5
19-445
4
4011
4012
4
3075
14
1067
7 Andromedse
5
7-8
3 52-36
4 7-74
2-703
2-807
6
5
41 37 49-0
51 43-5
19-446
19-452
20
5
4013
7
4 7-90
2-787
5
48 58 5-7
19-452
5
4014
8
5 18-97
2-751
4
44 54 31-3
19-477
4
4015
7-8
5 33-04
2-779
9,
47 22 20-4
19-481
o
X
4016
8
5 33-04
2-780
3
47 33 24-8
19-481
3
4017
6-7
5 35-65
2-699
5
40 24 53-7
19-482
5
4018
8-9
6 10-73
2-781
2
47 19 48-7
19-495
9
4019
8
6 10-88
2-785
1
47 43 7-8
19-495
1
4020
7
6 13-66
2-752
5
44 30 29-9
19-496
5
4021
8-9
7 14-33
1-990
3
15 47 55-4
19-516
3
4022
3085
6-7
7 53-68
2-070
6
16 48 12-6
19-529
6
4023
3084
543
6-7
8 4-77
2-681
5
37 48 33-0
19-533
5
4024
6
8 21-12
2-254
6
20 8 49-1
19-538
6
4025
6
23 8 22-43
+ 2-778
6
45 52 5-9
19-538
6
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
"* ~!
t S
PQQ
1
g
1
"o
>5
13
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude. 1
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
4026
4027
3089
39
1074
8 Andromedae
6
6
h m 3
23 8 58-07
9 2-87
+ 2 $ -740
2-779
6
6
42 1 17-1
45 32 48-5
19-550
19-551
6
6
4028
4029
30!) 1
45-
9 Andromedee
6
6
9 24-22
10 6-86
2-816
2-788
6
6
49 15 44-6
45 54 0-3
19-558
19-571
6
6
4030
7-8
10 8-91
2-754
4
42 32 27-3
19-572
4
4031
8
10 13-26
1-693
3
11 48 12-3
19-573
3
4032
8
10 21-10
2-698
3
37 48 16-4
19-576
3
4033
iii 63
7
10 38-93
2-054
5
15 44 17-8
19-581
5
4034
7-8
10 40-03
2-843
4
51 44 51-6
19-582
4
4035
4036
5
3093
3094
50
51
1 1 Andromedse
6
6-7
10 40-30
10 48-21
2-756
2-759
6
6
42 24 56-1
42 39 31-6
19-582
19-584
6
6
4037
4038
4039
38
3095
3097
52
53
54
iv.40
10 Andromedae
34 Cephei o
6
5
7
10 51-13
10 52-27
10 59-77
2-821
2-396
2-824
6
9
3
48 57 38-0
22 55 37-4
49 16 59-3
19-585
19-586
19-588
6
37
3
4040
6
11 1-03
2-161
6
17 20 52-2
19-588
6
4041
8
11 43-35
2-582
4
29 53 20-9
19-602
4
4042
8-9
11 53-86
2-631
3
32 31 20-8
19-605
3
4043
7
11 59-75
2-601
4
30 45 48-6
19-607
4
4044
8-9
12 7-06
2-637
3
32 45 42-6
19-609
3
4045
8-9
12 25-94
2-588
2
29 50 42-7
19-615
2
4046
8
13 1-96
2-697
3
36 13 24-6
19-626
3
4047
7-8
13 25-69
1-803
4
12 2 25-8
19-632
4
4048
8-9
13 44-34
2-712
2
36 55 59-0
19-637
2
4049
7-8
14 0-47
2-712
3
36 49 3-9
19-642
3
4050
3110
5-6
14 6-65
2-624
6
30 54 25-2
19-644
6
4051
7
14 54-71
2-721
5
37 35-4
19-657
5
4052
6-7
15 3*93
2-845
6
49 25 43-5
19-660
6
4053
6-7
15 28-59
2-851
6
49 55 43-7
19-667
6
4054
3112
7
15 31-83
2.679
6
33 30 23-5
19-668
6
4055
8
15 34-23
2-712
2
35 51 25-4
19-668
2
4056
7
15 40-69
2-534
5
25 41 50-8
19-670
5
4057
8
16 13-11
2-718
6
35 57 22-7
19-679
6
4058
7
16 15'21
2-705
6
34 56 11-9
19-680
6
4059
4060
3115
81
1081
4 Cassiopeiae
5
7-8
16 26-60
23 16 48-13
2-608
+ 2-748
6
4
28 45 33-8
38 3 46-8
19-683
19-689
10
4
118
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
X >.
g^
QC C6
D -
MM
"S
3
~
Wollaston. 1
T3
&H
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude.
Right Ascension
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
I
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession
No.
of
Obs.
4061
8
h m s
23 17 11-40
+ 2-749
2
o / //
37 51 52-7
jn'.VjQ/;
2
4062
8
17 23-43
2-633
3
29 36 32-1
19-698
3
4063
86
7-8
17 3T67
2-751
4
37 ^9 ^1-Q
1 Q 7 1
4
4064
7-8
17 51-45
2-644
5
29 57 24-7
19-706
5
4065
4066
3118
89
'
1 3 Andromedse
6
8-9
17 59-61
18 5-84
2-850
2-734
6
2
48 7 58-9
36 4 12-0
19-709
19-71 1
6
2
4067
8
18 21-46
2-739
3
36 1 44- ^
19-71 5
3
4068
3121
7-8
18 22-00
2-418
5
20 21 37-6
19-715
5
4069
7-8
18 44-69
2-509
4
23 10 42-5
19-791
4
4070
7-8
19 1-14
2-568
6
25 25 11-4
19-725
6
4071
3125
1084
5
19 18-13
2-443
6
20 41 4-3
19-729
6
4072
7
19 59-53
2-764
4
37 22 45-2
19-740
4
4073
7
20 11-27
2-309
6
16 55 37-2
19-743
6
4074
7
20 22-72
2-835
S
44 34 47-7
19 746
5
4075
8
20 43-38
2-856
2
47 6 19-2
19-751
2
4076
8
21 5-59
2-839
2
44 34 59-6
19-756
2
4077
100
7
21 8-89
2-714
4
32 29 51-7
19-757
4
4078
4079
1
Cassiop.
101
1086
B. F. 3224
5-6
8
21 18-40
21 31-56
2-716
2-860
12
2
32 29 51-9
47 4 13-1
19-759
19-763
12
2
4080
7
21 34-39
2-281
5
15 49 11-1
19-763
5
4081
4082
6
3128
107
550
14Andromedse
6
8
21 58-28
22 6-77
2-894
2-725
6
1
51 48 22-6
32 37 52-3
19-769
19-772
6
1
4083
1 10
7
22 40-99
2-866
9
46 58 31-9
19-779
9
4084
8
22 51-22
2-868
9,
47 13 27-2
19-781
2
4085
8
22 51-48
2-847
6
44 15 44-8
19-781
6
4086
7
23 32-35
2-162
5
13 9 12-1
19-791
5
4087
7-8
23 38-06
2-792
5
37 21 41-1
19-793
5
4088
6-7
23 42-21
2-623
6
25 18 32-1
19-794
6
4089
7
24 29-29
2-191
5
13 13 44-1
19-804
5
4090
7
24 40-72
2-858
7
44 21 56-3
19-807
7
4091
19,1
7
24 45-65
2-878
5
47 8 43-3
19-808
5
4092
8-9
25 10-11
2-799
1
36 58 51-7
19-813
1
4093
4094
3137
125
l5Andromedee
6
8
25 21-23
25 37-48
2-904
2-407
6
4
50 48 37-3
16 49 23-1
19-816
19-819
6
4
4095
8-9
23 25 41-60
+ 2-863
3
44 11 19-0
19-820
3
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
119
No.
Hevelius.
Bessel's
Bradley.
"5
Wollaston.
13
Pfi
Argelander.
Flamsteed's No.
and Bayer's
Character.
Magnitude. 1
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
4096
8-9
h m s
23 26 15-62
+ 2-823
2
o / //
Q qq i7-o
iq".R97
2
4097
6-7
26 22-48
2-825
5
38 45 35-2
19-829
5
4098
8
26 28-20
2-810
3
37 2 2-0
19-830
3
4099
7
26 39-54
2-624
6
23 33 29-6
19-833
6
4100
3140
fi '
26 48-65
2-520
5
19 24 27-6
19-835
5
4101
4102
39
3147
135
1.49
Cephei
5
8-9
27 39-78
27 50-80
0-188
2-835
6
1
3 44 28-6
38 46 53-3
19-846
19-848
6
1
4103
7
27 57-48
2-633
6
23 12 4-0
19-849
6
4104
q
28 12-34
2-469
2
17 7 49-4
19-852
2
4105
6
28 16-76
2-894
4
46 37 16-6
19-853
4
4106
4107
7
3143
138
1089
551
16 Androm. A
4
7
28 17-97
28 45-82
2-881
2-867
6
fi
44 34 11-1
42 2 53-5
19-854
19-859
17
6
4108
141
7-8
28 47-09
2-904
3
47 58 19-8
19-859
3
4109
4110
8
3144
142
17 Androm.
4
6-7
28 50-79
29 25-21
2-904
2-788
5
6
46 !}
32 23 48-0
19-860
19-866
5 1
50J
6
4111
4112
3146
144
1 8 Andromedse
6
7
29 58-16
30 15-23
2-864
2-794
6
5
40 34 47-7
32*18 2-5
19-872
19-876
6
5
4113
8
30 18-96
2-911
3
47 43 7-5
19-876
3
4114
9
30 22-78
2-519
2
17 24 51-7
19-877
2
4115
9
30 31-66
2-517
?
17 12 20-5
19-879
2
4116
7
30 35-42
2-795
5
32 4 55-0
19-879
5
4117
7
31 1-68
2-742
5
27 19 25-8
19-884
5
4118
4119
9
3149
151
1092
19 Androm. x.
4
7
31 4-76
31 6-76
2-910
2-473
6
5
AR A1 3 '1
46 43 2-3J
15 45 35-2
19-885
19-885
9}
25J
5
4120
152
in 65
6-7
31 9-86
2-521
5
17 3 0-8
19-886
5
4121
9
31 13-91
2-744
9
27 18 4-8
19-886
2
4122
4123
40
3152
155
ii. 54
1093
553
35 Cephei y
3
7
31 38-70
31 42-72
2-378
2-926
3
5
13 25 39-8
49 12 9-6
19-891
19-892
11
5
4124
8
31 47-39
2-468
4
15 17 55-6
19-892
4
4125
6-7
32 12-38
2-886
5
41 32 21-4
19-897
5
4126
8-9
32 20-41
2-929
9,
49 16 10-0
19-899
2
4127
160
7
32 53-42
2-917
5
46 17 46-8
19-904
5'
4128
6
32 55-38
2-916
7
46 3 38-2
19-905
7
4129
8
33 5-06
2-502
4
15 28 2-8
19-906
4
4130
8
23 33 26-55
+ 2-759
6
26 32 14-6
19-909
6
120
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
No.
Hevelius.
GO >>
-
f 1
B
H
9
Wollastou. 1
w
Z
-c
5
a,
<
Flamsteed's No.
and Bayer's
Character.
magnitude.
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
4131
8'9
h m s
23 33 47-74
+ -567
2
1 6 55' 30'- 1
19-914
2
4132
7
35 10-70
2-868
9
35 50 48-5
19 927
9
4133
7
35 16-67
2-867
6
35 33 44-7
19-928
6
4134
173
7-8
35 21-16
2-936
4
47 18 29-7
19-9-29
4
4135
7
35 9-61
2-869
.5
35 39 38-7
19-930
5
4136
175
Cr7
35 35-43
2-867
6
35 15 14-4
19-931
6
4137
4138
4139
10
16
3163
3164
181
187
-
1099
1101
20Androm. $/
5 Cassiopeise T
5
5
6-7
36 39-09
37 49-18
38 8-88
2-930
2-865 -
2-937
6
5
5
44 38 1-9
32 24 21-5
44 13 20-6
19-941
19-9oO
19-953
8
5
5
4140
8-9
38 40-08
2-964
3
49 56 49-8
19-957
3
4141
4142
41
3166
191
v.51.
1102
555
Cephei
5
7-8
38 54-00
38 57-73
2-782
2-830
11
5
23 14 55-0
27 14 16-3
19-959
19-959
11
5
4143
8-9
39 5-86
2-962
1
48 51 39-9
19-961
1
4144
6
39 31-18
2-826
6
26 10 42-6
10-934
6
4145
4146
3169
3170
195
6 Cassiopeiee
6
6
39 38-63
39 54-94
2-803
2-881
6
6
28 50 27-1
32 5 29-8
19-965
19-967
6
6
4147
202
7
40 39-68
2-864
3
28 50 30-0
19-973
3
4148
204
6
40 55-65
2-933
4
39 26 1-1
19-975
4
4149
7
41 12-61
2-856
5
27 18 44-5
19-978
5
4150
7
41 15-28
2-922
5
36 51 18-9
19-978
5
4151
7-8
41 27-11
2-978
5
49 53 34-1
19-979
5
4152
7
41 46-03
2-860
5
27 4 17-3
19-981
5
4153
7
42 1-98
2-977
5
48 58 23-3
19-983
5
4154
218
6-7
43 1637
2-716
6
15 30 54-0
19-991
6
4155
7-8
43 27-39
2-987
5
49 42 42-2
19-992
5
4156
6-7
43 43-02
2-906
6
30 21 8-2
19-993
6
4157
223
6
44 4-72
2-956
4
39 32 5-9
19-995
4
4158
6-7
44 27-04
2-912
6
30 12 12-8
19-998
6
4159
7-8
44 28-72
2-996
2
51 46 29-5
19998
2
4160
8
44 39-09
2-982
3
46 11 21-1
19-999
3
4161
4162
12
3182
226
7 Cassiopeise g
5
8
44 56-68
45 19-12
2-936
2-957
6
3
33 33 27-5
37 33 30-8
20-001
20-003
6
3
4163
1104
5
45 42-58
2-790
6
16 38 49-5
20-005
6
4164
23!
7
46 0-45
2-965
5
38 19 22-1
20-007
5
4165
6-7
23 46 0-61
+2-983
6
43 42 3-9
20-008
6
GROOMBRIDGE'S CATALOGUE OF CIRCUMPOLAR STARS.
121
No.
Hevelius.
>>
-. oj
S^S
2
pqpq
"5
s
Wollaston.
T3
a
1
Argelander. 1
Flamsteed's No.
and Bayer's
Character.
Magnitude.
Right Ascension.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
North Polar
Distance.
Jan. 1, 1810.
Annual
Precession.
No.
of
Obs.
4166
7-8
h m s
23 46 4-34
+ 2'986
q
44 41 53"-6
26'' 007
9
4167
7
46 14-66
2-982
5
42 50 1-4
20-008
5
4168
8-9
46 55-39
3-001
3
48 32 19-3
20-011
3
4169
8
46 58-99
2-969
3
37 20 41-3
20-012
3
4170
7-8
47 7-67
2-821
d
16 55 12-3
20-013
5
4171
7-8
47 22-89
2-993
4
44 26 24-7
20-014
4
4172
7
47 27-53
3-003
5
48 23 56-5
20-014
5
4173
3185
237
6
47 37-12
2-966
fi
35 21 4-2
20-015
6
4174
3187
7
47 45-94
2-552
5
7 52 1-8
20-016
6
4175
7-8
47 46-99
2-991
3
42 46 35-0
20-016
3
4176
7-8
48 11-92
2-846
5
17 11 28-8
20-018
5
4177
949
6
48 32-65
2-991
6
40 37 23-0
20-019
6
4178
8
48 44-36
3-017
4
52 5 33-7
20-020
4
4179
8
48 50-07
3-002
6
44 44 57-6
20-020
6
4180
7-8
49 6-27
2-986
4
37 40 12-6
20-021
4
4181
7
49 9-19
3-004
11
44 38 40-3
20-022
11
4182
8-9
49 11-10
2-867
2
17 23 58-9
20-022
2
4183
8
49 14-06
2-986
3
37 23 3-4
20-022
3
4184
7-8
49 14-44
3-019
5
51 56 39-7
20-022
5
4185
8-Q
49 24-18
3-010
9
46 29 36-8
20-023
2
4186
4187
8
3190
245
8 Cassiopeise