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Greip (moon)
From Wikipedia, the free encyclopedia
Greip (greyp, IPA: /ˈgreɪp/) or Saturn LI (provisional designation S/2006 S 4) is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on June 26, 2006, from observations taken between January 5 and May 1, 2006. S/2006 S 4 is about 6 kilometres in diameter, and orbits Saturn at an average distance of 18,066 Mm in 906.556 days, at an inclination of 172.7° to the ecliptic (159.2° to Saturn's equator), in a retrograde direction and with an eccentricity of 0.3735.
It is named after Greip, a giantess in Norse mythology.
- Institute for Astronomy Saturn Satellite Data
- IAUC 8727: Satellites of Saturn 2006 June 30 (discovery)
- MPEC 2006-M45: Eight New Satellites of Saturn 2006 June 26 (discovery and ephemeris)
- IAUC 8873: Satellites of Saturn (subscription-only) 2007 September 20 (naming)
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| Generally listed in increasing distance from Saturn. Temporary names in italics. | |
| Ring shepherds | (moonlets) · 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) |
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| Outer large | Rhea · Titan · Hyperion · Iapetus |
| Inuit group | Kiviuq · Ijiraq · Paaliaq · Siarnaq · Tarqeq |
| Norse group |
Phoebe · Skathi · S/2007 S 2 · Skoll · S/2004 S 13 · Greip · Hyrrokkin · Mundilfari · Jarnsaxa · 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/2007 S 3 · S/2006 S 3 · Surtur · Kari · Fenrir · Ymir · Loge · Fornjot |
| Gallic group | Albiorix · Bebhionn · Erriapus · Tarvos |
| Rings of Saturn · Cassini-Huygens · Themis · Chiron | |