(82) Alkmene Main-belt Asteroid
Discovered on 27 November 1864 by R. Luther at Dusseldorf.
Where Alkmene is today
Seen from above the solar system on 2026-10-14: Alkmene is 2.38 au from the Sun and 3.38 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 82 |
| Provisional designation | A864 WA |
| Orbit class | Main-belt Asteroid |
| Diameter | 57.6 km (#624 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.167 |
| Rotation period | 13.0 hours |
| Spectral type | S |
| Absolute magnitude (H) | 8.26 |
| Orbital period | 4.59 years |
| Semi-major axis | 2.76 au |
| Perihelion – aphelion | 2.15 – 3.37 au |
| Eccentricity | 0.221 |
| Inclination | 2.83° |
| Closest distance between its orbit and Earth's (MOID) | 1.17 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by R. Luther
- (17) Thetis
- (26) Proserpina
- (28) Bellona
- (35) Leukothea
- (37) Fides
- (47) Aglaja
- (53) Kalypso
- (57) Mnemosyne
- (58) Concordia
- (68) Leto
- (71) Niobe
- (78) Diana
← (81) Terpsichore · (83) Beatrix →