S / 2004 S 12
S / 2004 S 12 | |
---|---|
Central body | Saturn |
Properties of the orbit | |
Major semi-axis | 19,878,000 km |
Periapsis | 13,398,000 km |
Apoapsis | 26,358,000 km |
eccentricity | 0.3260 |
Orbit inclination | 165.282 ° |
Orbital time | 1046.19 d |
Mean orbital velocity | 1.34 km / s |
Physical Properties | |
Albedo | 0.04 |
Apparent brightness | 24.8 mag |
Medium diameter | ≈ 5 km |
Dimensions | ≈ 1.5 × 10 14 kg |
Medium density | 2.30 g / cm 3 |
Acceleration of gravity on the surface | ≈ 0 m / s 2 |
Escape speed | ≈ 0 m / s |
discovery | |
Explorer |
David C. Jewitt , Scott S. Sheppard , Jan Kleyna , Brian G. Marsden |
Date of discovery | December 12, 2004 |
S / 2004 S 12 is one of the smaller outer moons of the planet Saturn .
discovery
The discovery of S / 2004 S 12 by David C. Jewitt , Scott S. Sheppard , Jan Kleyna and Brian G. Marsden on recordings from December 12, 2004 to March 9, 2005 was announced on May 3, 2005.
Orbit data
S / 2004 S 12 orbits Saturn on a retrograde eccentric orbit in around 1048 days and 13 hours. The eccentricity of the orbit is 0.396, with the orbit inclined at 164.04 ° to the ecliptic .
Structure and physical data
S / 2004 S 12 has a diameter of about 5 km.
Web links
- MPEC 2005-J13: Twelve New Satellites of Saturn May 3, 2005 (Discovery and Ephemeris)
- IAUC 8523: New Satellites of Saturn May 4, 2005 (discovery)
further inside | Saturn moons | further outside |
Erriapus |
Semi- major axis (km) S / 2004 S 12 17,402,800 |
Siarnaq |