Aegir #12 Aegir, also 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. Properties: Galaxy: Milky Way System: Solar Main Planet: Saturn Type: Satellite Name: Aegir Resource: Magnesium Rarity: Legendary