Greip (moon)

Greip (pronEng|ˈgreɪp "greyp)" 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.

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)

sk:S/2006 S 4
sv:S/2006 S 4