37 Fides
|
Discovery
|
| Discovered by |
R. Luther |
| Discovery date |
October 5, 1855 |
|
Designations
|
| Alternative names |
1925 WH |
Minor planet
category |
Main belt |
|
Orbital characteristics
|
| Epoch December 31, 2006 (JD 2454100.5) |
| Aphelion |
464.908 Gm (3.108 AU) |
| Perihelion |
325.340 Gm (2.175 AU) |
| Semi-major axis |
395.124 Gm (2.641 AU) |
| Eccentricity |
0.177 |
| Orbital period |
1567.873 d (4.29 a) |
| Average orbital speed |
18.18 km/s |
| Mean anomaly |
29.315° |
| Inclination |
3.073° |
| Longitude of ascending node |
7.409° |
| Argument of perihelion |
62.683° |
|
Physical characteristics
|
| Dimensions |
108.3 km |
| Mass |
1.3×1018 kg |
| Mean density |
2.0 g/cm³ |
| Equatorial surface gravity |
0.0303 m/s² |
| Escape velocity |
0.0573 km/s |
| Rotation period |
0.3055 d (7.332 h) [1] |
| Albedo |
0.183 [2] |
| Temperature |
~167 K |
| Spectral type |
S |
| Absolute magnitude |
7.29 |
37 Fides (IPA: /ˈfaɪdiz/) is a large main belt asteroid.
It was discovered by R. Luther on October 5, 1855 and named after Fides, the Roman goddess of loyalty.