What is Greip (moon)?
'''Greip''' or '''Saturn LI''' (provisional designation '''S/2006 S 4''') is a [[Satellite (natural)|moon]] of [[Saturn (planet)|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. Greip is about 6 kilometres in diameter, and orbits Saturn at an average distance of 18,066,000&nbsp;km in 906.556 days, at an [[inclination]] of 172.7° to the [[ecliptic]] (159.2° to Saturn's equator), and with an [[Orbital eccentricity|eccentricity]] of 0.3735. It is named after [[Gjálp and Greip|Greip]], a giantess (female giant) in [[Norse mythology]]. == References == * [http://www.ifa.hawaii.edu/~sheppard/satellites/satsatdata.html Institute for Astronomy Saturn Satellite Data] * [http://cfa-www.harvard.edu/iauc/08700/08727.html IAUC 8727: ''Satellites of Saturn''] 2006 June 30 (discovery) * [http://cfa-www.harvard.edu/mpec/K06/K06M45.html MPEC 2006-M45: ''Eight New Satellites of Saturn''] 2006 June 26 (discovery and ephemeris) * [http://cfa-www.harvard.edu/iauc/08800/08873.html IAUC 8873: ''Satellites of Saturn''] (subscription-only) 2007 September 20 (naming) <br />{{Moons of Saturn}} {{sci-stub}} [[Category:Saturn's moons]]