Kiviuq (moon)
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| Discovery [1] | |
|---|---|
| Discovered by | Brett J. Gladman |
| Discovered | in 2000 |
| Mean Orbital elements [2] | |
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| Semi-major axis | 11.111 Gm |
| Eccentricity | 0.3288 |
| Inclination | 45.71° * |
| Orbital period | 449.22 d (1.23 yr) |
| Physical characteristics | |
| Mean diameter | 16 km[3] ** |
| Rotation period | ? |
| Albedo | 0.04 [3] assumed |
| Color | light red B-V=0.87 R-V=0.66[4]/0.48[5] |
| Spectral type | D [5] |
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| *to the ecliptic | **based on the albedo |
Kiviuq (kee'-vee-oek or kiv'-ee-ook, IPA: [ˈkiːviɔʊk], IPA: [ˈkɪviʊk]) 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.
It is named after a "giant" of Inuit mythology. Kiviuq (also spelled Keeveeok, Qiviuq or Kivioq) is a legendary and heroic Inuk, a sort of Inuit Odysseus. He has lived very long (or has had several lives), has wandered and journeyed, living all sorts of adventures whose details depend on the story-teller's local tradition.
Kiviuq is about 16 kilometres in diameter, and orbits Saturn at an average distance of 11.1 Gm in 450 days. It is a member of the Inuit group of irregular satellites.
Kiviuq displays light-red colours and the infrared spectrum very similar to Siarnaq and Paaliaq, further supporting the thesis of a possible common origin of the Inuit group in the break-up of a larger body[6] [5].
Kiviuq is believed to be in Kozai resonance i.e. cyclically reducing the orbital inclination while increasing the eccentricity and vice versa[7].
[edit] External links
[edit] References
- ^ Discovery Circumstances (JPL)
- ^ Mean orbital parameters from JPL
- ^ a b Scott Sheppard pages
- ^ T. Grav, M. Holman, B. Gladman, K. Aksnes Photometric survey of the irregular satellites, Icarus, 166 (2003), pp. 33-45. Preprint
- ^ a b c Tommy Grav and James Bauer A deeper look at the colors of Saturnian irregular satellites, Preprint
- ^ B. Gladman, P. Nicholson, Burns, JJ Kavelaars, Brian G. Marsden, Holman, Grav T. et al. Discovery of 12 satellites of Saturn exhibiting orbital clustering., Nature, 412 (2001), p. 163
- ^ Ćuk, Matija; Burns, Joseph A. On the Secular Behavior of Irregular Satellites, The Astronomical Journal, 128 (2004), pp. 2518-2541 Preprint
- Ephemeris from IAU
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Generally listed in increasing distance from Saturn
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| Ring shepherds | Pan · Daphnis · Atlas · Prometheus · S/2004 S 6? · S/2004 S 4? · S/2004 S 3? · Pandora |
| Co-orbitals | Epimetheus · Janus |
| Inner large and Trojan | Mimas · Methone · Pallene · Enceladus · Tethys (trojans Telesto, Calypso) · Dione (trojans Helene, Polydeuces) |
| Outer large | Rhea · Titan · Hyperion · Iapetus |
| Inuit group | Kiviuq · Ijiraq · Paaliaq · Siarnaq |
| Norse group | Phoebe · Skathi · Skoll · S/2004 S 13 · S/2006 S 4 · Hyrokkin · Mundilfari · S/2006 S 6 · S/2006 S 1 · S/2004 S 17 · Narvi · Bergelmir · Aegir · Suttungr · S/2004 S 12 · Bestla · Farbauti · Hati · S/2004 S 7 · Thrymr · S/2006 S 3 · Surtur · Kari · Fenrir · Ymir · Loge · Fornjot |
| Gallic group | Albiorix · Bebhionn · Erriapo · Tarvos |
