id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
en-wikipedia-org-6685		Orbital resonance - Wikipedia			.html	text/html	10012	1343	72	The eccentric Titan Ringlet[2] in the Columbo Gap of Saturn's C Ring (center) and the inclined orbits of resonant particles in the bending wave[3][4] just inside it have apsidal and nodal precessions, respectively, commensurate with Titan's mean motion. The system was discovered in the citizen science project Exoplanet Explorers, using K2 data.[50] K2-138 could host co-orbital bodies (in a 1:1 mean-motion resonance).[51] Resonant chain systems can stabilize co-orbital bodies[52] and a dedicated analysis of the K2 light curve and radial-velocity from HARPS might reveal them.[51] Follow-up observations with the Spitzer Space Telescope suggest a sixth planet continuing the 3:2 resonance chain, while leaving two gaps in the chain (its period is 41.97 days). Diagram of the orbits of Pluto's small outer four moons, which follow a 3:4:5:6 sequence of near resonances relative to the period of its large inner satellite Charon.	./cache/en-wikipedia-org-6685.html	./txt/en-wikipedia-org-6685.txt