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Kiviuq (moon)
Kiviuq ( or ) is a prograde irregular satellite of Saturn. It was discovered by Brett J. Gladman in 2000, and given the temporary designation S/2000 S 5.〔(IAUC 7521: ''S/2000 S 5, S/2000 S 6'' ) November 18, 2000 (discovery)〕〔(MPEC 2000-Y14: ''S/2000 S 3, S/2000 S 4, S/2000 S 5, S/2000 S 6, S/2000 S 10'' ) December 19, 2000 (discovery and ephemeris)〕 It was named after Kiviuq, a hero of Inuit mythology.〔(IAUC 8177: ''Satellites of Jupiter, Saturn, Uranus'' ) August 8, 2003 (naming the moon)〕
Kiviuq is about 16 kilometres in diameter, and orbits Saturn at an average distance of 11.1 million kilometers in 450 days. It is a member of the Inuit group of irregular satellites. It is light red, and the Kiviupian (Kiviuqan) infrared spectrum is very similar to the Inuit-group satellites Siarnaq and Paaliaq, supporting the thesis of a possible common origin of the Inuit group in the break-up of a larger body.〔Grav, T.; and Bauer, J.; (''A deeper look at the colors of Saturnian irregular satellites'' )〕〔Gladman, B. J.; Nicholson, P. D.; Burns, J. A.; Kavelaars, J. J.; Marsden, B. G.; Holman, M. J.; Grav, T.; Hergenrother, C. W.; Petit, J.-M.; Jacobson, R. A.; and Gray, W. J.; (''Discovery of 12 satellites of Saturn exhibiting orbital clustering'' ), Nature, 412 (July 12. 2001), pp. 163–166〕
Kiviuq is believed to be in Kozai resonance, cyclically reducing its orbital inclination while increasing the eccentricity and vice versa.〔Ćuk, M.; and Burns, J. A.; (''On the Secular Behavior of Irregular Satellites'' ), The Astronomical Journal, Vol. 128 (2004), pp. 2518–2541〕
==Exploration==
On 30 August 2010, the (ISS camera ) of the Cassini–Huygens spacecraft took light-curve data from a distance of 9.3 million km. With these data, the rotation period was measured to 21 hours and 49 minutes.〔
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