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Moon of Saturn
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.[3]
S/2004 S 21 is about 3 kilometres in diameter, and orbits Saturn at an average distance of 22.645 Gm in 1272.61 days, at an inclination of 160° to the ecliptic, in a retrograde direction and with an eccentricity of 0.318.[3]
References
- ^ Discovery Circumstances from JPL
- ^ a b S.S. Sheppard (2019). "Moons of Saturn, Carnegie Science, on line".
- ^ a b "MPEC 2019-T127 : S/2004 S 21". minorplanetcenter.net. Retrieved 7 October 2019.
Listed in approximately increasing distance from Saturn | |||||||
Ring moonlets | |||||||
Ring shepherds | |||||||
Other inner moons | |||||||
Alkyonides | |||||||
Large moons (with trojans) | |||||||
Inuit group (12) |
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Gallic group (7) | |||||||
Norse group (100) |
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Outlier prograde irregular moons | |||||||
Geography | |
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Moons | |
Astronomy | |
Exploration | |
Related | |
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