82 Alkmene
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| Discovery | |
|---|---|
| Discovered by: | Karl Theodor Robert Luther |
| Discovery date: | November 27, 1864 |
| Alternative names: | |
| Minor planet category: | Main belt |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion distance: | 505.547 Gm (3.379 AU) |
| Perihelion distance: | 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 (alk-mee'-nee) is a Main belt asteroid. Alkmene was discovered by R. Luther on November 27, 1864 and named after Alcmene, the mother of Herakles in Greek mythology. A satellite has been suggested based on the lightcurve data. [1]
[edit] References
| Minor planets | ||
|---|---|---|
| Previous minor planet | 82 Alkmene | Next minor planet |
| List of asteroids | ||
Vulcanoids · Near-Earth asteroids · Main belt · Jupiter Trojans · Centaurs · Damocloids · Comets · Trans-Neptunians (Kuiper belt • Scattered disc • Oort cloud)
For other objects and regions, see Asteroid groups and families, Binary asteroids, Asteroid moons and the Solar System.
For a complete listing, see List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names.
