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29 Amphitrite
From Wikipedia, the free encyclopedia
| Discovery | |
|---|---|
| Discovered by: | A. Marth |
| Discovery date: | March 1, 1854 |
| Alternative names: | A899 NG |
| Minor planet category: | Main belt |
| Orbital characteristics | |
| Epoch June 14, 2006 (JD 2453900.5) | |
| Aphelion distance: | 409.809 Gm (2.739 AU) |
| Perihelion distance: | 354.398 Gm (2.369 AU) |
| Semi-major axis: | 382.103 Gm (2.554 AU) |
| Eccentricity: | 0.073 |
| Orbital period: | 1491.013 d (4.08 a) |
| Avg. orbital speed: | 18.61 km/s |
| Mean anomaly: | 229.662° |
| Inclination: | 6.096° |
| Longitude of ascending node: | 356.501° |
| Argument of perihelion: | 63.433° |
| Physical characteristics | |
| Dimensions: | 212.2 km † |
| Mass: | 1.0×1019 kg |
| Mean density: | 2.0 g/cm³ |
| Equatorial surface gravity: | 0.0593 m/s² |
| Escape velocity: | 0.1122 km/s |
| Rotation period: | 0.2246 d (5.390 h) [1] |
| Albedo: | 0.1793 [2] |
| Temperature: | ~170 K |
| Spectral type: | S |
| Absolute magnitude: | 5.85 |
29 Amphitrite (IPA: [ˌæmfɪˈtʰɹaɪti]) is one of the largest Main belt asteroids.
Amphitrite was discovered by Albert Marth on March 1, 1854. It was his only asteroid discovery. It is named after Amphitrite, a sea goddess in Greek mythology.
A satellite is suspected based on the lightcurve data.[1] [2]
- ^ Tedesco, E. F. (March 1979). "Binary Asteroids: Evidence for Their Existence from Lightcurves". Science, New Series 203 (4383): 905-907.
- ^ van Flandern, T. C.; Tedesco, E. F.; Binzel, R. P. (1979). "Satellites of asteroids". 'Asteroids': 443-465, Tucson, AZ: University of Arizona Press.
| Minor planets | ||
|---|---|---|
| Previous minor planet | 29 Amphitrite | 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.