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・ IJF
・ IJf Blokker
・ IJG (disambiguation)
・ IJgeul
・ IJHL
・ IJhorst
・ IJI
・ Iji
・ Ijichi Kōsuke
・ Ijigban community
・ Ijima's leaf warbler
・ Ijimaia
・ Ijime, Dame, Zettai
・ Ijira River
・ Ijiraq
Ijiraq (moon)
・ Ijiraq (mythology)
・ Ijiri Station
・ IJIS Institute
・ Ijivitari District
・ Ijjauddin Balban Iuzbaki
・ Ijji
・ Ijjodu
・ Ijjurittiak Island
・ IJK
・ IJkdijk
・ IJL
・ Ijlal Haider Zaidi
・ Ijlil al-Qibliyya
・ Ijlil al-Shamaliyya


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Ijiraq (moon) : ウィキペディア英語版
Ijiraq (moon)

Ijiraq ( or ), or Saturn XXII (22), is small prograde irregular satellite of Saturn. It was discovered by the team of
Brett Gladman, John J. Kavelaars, ''et al.'' in 2000, and given the temporary designation .〔(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 in 2003 after the ijiraq, a creature in Inuit mythology.〔(IAUC 8177: ''Satellites of Jupiter, Saturn, Uranus'' ) August 8, 2003 (naming the moon)〕
== Orbit ==

Ijiraq orbits Saturn at an average distance of 11.1 Gm in 451 days on an orbit very similar to Kiviuq's. Ijiraq is believed to be in Kozai resonance: its orbit is cyclically reducing the inclination while increasing the eccentricity and vice versa. The orbital argument of pericenter oscillates around 90° with an amplitude of 60°.〔Nesvorný, D.; Alvarellos, Jose L. A.; Dones, L.; and Levison, H. F.; (''Orbital and Collisional Evolution of the Irregular Satellites'' ), The Astronomical Journal, 126 (2003), pp. 398–429〕

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