S/2004 S 21 #6 S/2004 S 21 is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, and Jan Kleyna on October 7, 2019 from observations taken between December 12, 2004 and January 17, 2007.
 Properties: Galaxy: Milky Way System: Solar Main Planet: Saturn Type: Satellite Name: S/2004 S 21 Resource: Carbon Rarity: Epic