257 Silesia
|
A three-dimensional model of 257 Silesia based on its light curve. | |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | April 5, 1886 |
| Designations | |
Named after | Silesia |
|
1929 DD, 1952 FL1, 1952 HU | |
| Main belt | |
| Orbital characteristics | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 521.721 Gm (3.487 AU) |
| Perihelion | 410.669 Gm (2.745 AU) |
| 466.195 Gm (3.116 AU) | |
| Eccentricity | 0.119 |
| 2009.341 d (5.5 a) | |
Average orbital speed | 16.87 km/s |
| 2.013° | |
| Inclination | 3.648° |
| 34.893° | |
| 24.727° | |
| Physical characteristics | |
| Dimensions | 73.0 km |
| Mass | unknown |
Mean density | unknown |
| unknown | |
| unknown | |
| 15.7095 h | |
| Albedo | 0.0545 |
| Temperature | unknown |
Spectral type | unknown |
| 9.47 | |
|
| |
.png)
257 Silesia is a large Main belt asteroid.
It was discovered by Johann Palisa on April 5, 1886 in Vienna.
It is named after Silesia, a region of the Central Europe.
Little data is available on it.
References
- Orbital simulation from JPL
| ||||||
| ||||||||||||||||||||||||||||