Aegir (moon)

Aegir (pronEng|ˈajɪr "EYE-irr)" or Saturn XXXVI (provisional designation S/2004 S 10) is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on May 4, 2005, from observations taken between December 12, 2004, and March 11, 2005.

Aegir is about 6 kilometres in diameter, and orbits Saturn at an average distance of 19,618 Mm in 1025.908 days, at an inclination of 167° to the ecliptic (140° to Saturn's equator), in a retrograde direction and with an eccentricity of 0.237.

It was named in April 2007 after Ægir, a giant from Norse mythology, the personification of tranquil seas, the one who soothes storms away. He is a son of Fornjót, and brother of Logi (fire, flame) and Kári (wind).

References

* [http://www.ifa.hawaii.edu/~sheppard/satellites/satsatdata.html Institute for Astronomy Saturn Satellite Data]
* [http://www.ifa.hawaii.edu/~jewitt/saturn2005.html Jewitt's New Satellites of Saturn page]
* [http://cfa-www.harvard.edu/iauc/08500/08523.html IAUC 8523: "New Satellites of Saturn"] May 4 2005 (discovery)
* [http://cfa-www.harvard.edu/mpec/K05/K05J13.html MPEC 2005-J13: "Twelve New Satellites of Saturn"] May 3 2005 (discovery and ephemeris)
* [http://cfa-www.harvard.edu/iauc/08800/08826.html IAUC 8826: "Satellites of Jupiter and Saturn"] (subscription-only) 2007 April 5 (naming the moon)

da:S/2004 S 10
nl:S/2004 S10
sv:S/2004 S 10