82 Alkmene
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Discovery | |
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Discovered by: | Karl Theodor Robert Luther |
Discovery date: | November 27, 1864 |
Orbital characteristics | |
Epoch December 31, 2006 (JD 2454100.5) | |
Aphelion | 505.547 Gm (3.379 AU) |
Perihelion: | 320.232 Gm (2.141 AU) |
Semi-major axis: | 412.890 Gm (2.760 AU) |
Eccentricity: | 0.224 |
Orbital period: | 1674.795 d (4.59 a) |
Avg. orbital speed: | 17.70 km/s |
Mean anomaly: | 291.491° |
Inclination: | 2.833° |
Longitude of ascending node: | 25.636° |
Argument of perihelion: | 110.371° |
Physical characteristics | |
Dimensions: | 61.0 km |
Mass: | 2.4×1017 kg |
Mean density: | ? g/cm³ |
Equatorial surface gravity: | 0.0170 m/s² |
Escape velocity: | 0.0322 km/s |
Rotation period: | ? d |
Albedo: | 0.208 [1] |
Temperature: | ~168 K |
Spectral type: | S |
Absolute magnitude: | 8.40 |
82 Alkmene is a Main belt asteroid. Alkmene was found by R. Luther on November 27, 1864 and named after Alcmene, the mother of Herakles in Greek mythology. A moon has been suggested based on the lightcurve data. [1]
[change] References
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81 Terpsichore | 82 Alkmene | 83 Beatrix
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Near-Earth asteroids · Main belt · Jupiter Trojans · Neptune Trojans · Comets · Kuiper belt · Oort cloud |