Eurydome (moon)
Eurydome | |
---|---|
Provisional or systematic name | S / 2001 J 4 |
Central body | Jupiter |
Properties of the orbit | |
Major semi-axis | 22,865,000 km |
Periapsis | 16,554,300 km |
Apoapsis | 29,175,700 km |
eccentricity | 0.276 |
Orbit inclination | 150.3 ° |
Orbital time | 717.3 d |
Mean orbital velocity | 2.32 km / s |
Physical Properties | |
Albedo | 0.04 |
Apparent brightness | 22.7 mag |
Medium diameter | 4 km |
Dimensions | 4.5 × 10 13 kg |
Acceleration of gravity on the surface | ≈ 0 m / s 2 |
Escape speed | ≈ 0 m / s |
discovery | |
Explorer | |
Date of discovery | December 9, 2001 |
Eurydome (also Jupiter XXXII) is one of the smaller outer moons of the planet Jupiter .
discovery
Eurydome was discovered on December 9, 2001 by astronomers at the University of Hawaii. It was initially given the provisional designation S / 2001 J 4.
The moon was named after Eurydome , one of the Charites from Greek mythology .
Orbit data
Eurydome orbits Jupiter at an average distance of 22,865,000 km in 717 days and 7 hours. The track has an eccentricity of 0.276. With an inclination of 150.3 ° the orbit is retrograde; that is, the moon moves around the planet against the direction of rotation of Jupiter.
Due to its orbital properties, Eurydome is assigned to the Pasiphae group , named after the Jupiter moon Pasiphae . Eurydome is the innermost member of the group.
Physical data
Eurydome has a mean diameter of about 3 km. Their density is estimated at 2.6 g / cm³. It is probably made up mainly of silicate rock. Eurydome has a very dark surface with an albedo of 0.04, i.e. that is, only 4% of the incident sunlight is reflected. Their apparent brightness is 22.7 m .
Web links
- MPEC 2002-J54: Eleven new Satellites of Jupiter May 15, 2002 (discovery)
- IAUC 7900: Satellites of Jupiter May 16, 2002 (discovery)
- MPEC 2003-A21: S / 2001 J 4 January 4, 2003 (rediscovery)
- IAUC 8177: Satellites of Jupiter, Saturn, Uranus August 8, 2003 (numbering and naming)
before | Jupiter moons | after that |
Aitne | Eurydome |
Euanthe |