S / 2004 S 7
| S / 2004 S 7 | |
|---|---|
| Central body | Saturn |
| Properties of the orbit | |
| Major semi-axis | 20,999,000 km |
| Periapsis | 9,872,000 km |
| Apoapsis | 32,126,000 km |
| eccentricity | 0.5299 |
| Orbit inclination | 166.185 ° |
| Orbital time | 1140.24 d |
| Mean orbital velocity | 1.24 km / s |
| Physical Properties | |
| Albedo | 0.04 (?) |
| Apparent brightness | 24.50 likes |
| Medium diameter | ≈ 6 km |
| Dimensions | ≈ 2.6 × 10 14 kg |
| Medium density | 2.3 (?) 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 , |
| Date of discovery | December 12, 2004 |
S / 2004 S 7 is one of the smaller outer moons of the planet Saturn .
discovery
The discovery of S / 2004 S 7 by David C. Jewitt , Scott S. Sheppard , Jan Kleyna and Brian G. Marsden on recordings from December 12, 2004 to March 8, 2005 was announced on May 3, 2005.
Orbit data
S / 2004 S 7 orbits Saturn on a retrograde eccentric orbit in around 1140 days. The eccentricity of the orbit is 0.53, the orbit is inclined at 166 ° to the ecliptic .
Structure and physical data
S / 2004 S 7 has a diameter of about 6 kilometers.
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 |
| S / 2004 S 12 |
Semi- major axis (km) S / 2004 S 7 19,800,000 |
S / 2004 S 27 |