51 Nemausa
From Wikipedia, the free encyclopedia
| Discovery | |
|---|---|
| Discovered by: | A. Laurent |
| Discovery date: | January 22, 1858 |
| Alternative names: | |
| Minor planet category: | Main belt |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion distance: | 377.381 Gm (2.523 AU) |
| Perihelion distance: | 330.360 Gm (2.208 AU) |
| Semi-major axis: | 353.871 Gm (2.365 AU) |
| Eccentricity: | 0.066 |
| Orbital period: | 1328.853 d (3.64 a) |
| Avg. orbital speed: | 19.34 km/s |
| Mean anomaly: | 316.668° |
| Inclination: | 9.972° |
| Longitude of ascending node: | 176.168° |
| Argument of perihelion: | 2.820° |
| Physical characteristics | |
| Dimensions: | 147.9 km |
| Mass: | 3.4×1018 kg |
| Mean density: | ? g/cm³ |
| Equatorial surface gravity: | 0.0413 m/s² |
| Escape velocity: | 0.0782 km/s |
| Rotation period: | ? d |
| Albedo: | 0.093 [1] |
| Temperature: | ~181 K |
| Spectral type: | G |
| Absolute magnitude: | 7.35 |
51 Nemausa (IPA: [nɪˈmɔzə]) is a large Main belt asteroid similar to 1 Ceres in composition. It was discovered in the city of Nîmes, France, after which it was named (in its Latin name). The discoverer was a certain "A. Laurent" who never made any more asteroid discoveries and about whom not much seems to be known. The asteroid was discovered using the private observatory at the house formerly occupied by Benjamin Valz, who left to become the new director of the Marseille Observatory. He entrusted his former observatory to A. Laurent, who later found the asteroid. The house, at 32 rue Nationale in Nîmes, has a plaque commemorating the discovery. [1]
A small satellite has been suggested based on lightcurve data. [2]
[edit] Aspects
[edit] References
| Minor planets | ||
|---|---|---|
| Previous minor planet | 51 Nemausa | 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.
