Megaclite (moon)
| Megaclite | |
|---|---|
| Provisional or systematic name | S / 2000 J 8 |
| Central body | Jupiter |
| Properties of the orbit | |
| Major semi-axis | 23,806,000 km |
| Periapsis | 13,783,700 km |
| Apoapsis | 33,828,300 km |
| eccentricity | 0.421 |
| Orbit inclination | 152.8 ° |
| Orbital time | 752.8 d |
| Mean orbital velocity | 2.30 km / s |
| Physical Properties | |
| Albedo | 0.04 |
| Apparent brightness | 21.7 mag |
| Medium diameter | 5 km |
| Dimensions | 2.1 × 10 14 kg |
| Acceleration of gravity on the surface | ≈ 0 m / s 2 |
| Escape speed | ≈ 0 m / s |
| discovery | |
| Explorer | |
| Date of discovery | November 25, 2000 |
Megaclite (also Jupiter XIX) is one of the smaller outer moons of the planet Jupiter .
discovery
Megaclite was discovered by astronomers at the University of Hawaii on November 25, 2000 . It was initially given the provisional designation S / 2000 J 8.
The moon was named after Megaclite , a mistress of Zeus from Greek mythology .
Orbit data
Megaclite orbits Jupiter at a mean distance of 23,806,000 km in 752 days and 19 hours. The track has an eccentricity of 0.421. With an inclination of 152.8 ° the orbit is retrograde, that is, the moon moves around the planet against the direction of rotation of Jupiter.
Due to its orbital properties, Megaclite is assigned to the Pasiphae group , named after the Jupiter moon Pasiphae .
Physical data
Megaclite has a diameter of about 5 km. Their density is estimated at 2.6 g / cm³. It is probably made up mainly of silicate rock. Megaclite has a very dark surface with an albedo of 0.04; that is, only 4% of the incident sunlight is reflected. Their apparent brightness is 21.7 m .
Web links
- IAUC 7555: Satellites of Jupiter January 5, 2001 (discovery)
- MPEC 2001-A29: S / 2000 J 7, S / 2000 J 8, S / 2000 J 9, S / 2000 J 10, S / 2000 J 11 January 5, 2001 (discovery)
- MPEC 2001-T59: S / 2000 J 8, S / 2000 J 9, S / 2000 J 10 October 15, 2001 (rediscovery)
- IAUC 7998: Satellites of Jupiter October 22, 2002 (numbering and naming)
- IAUC 8023: Satellites of Jupiter November 29, 2002 (Correction to IAUC 7998)
| before | Jupiter moons | after that |
| Themisto | Megaclite |
Taygete |