431 Nephele
| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery date | December 18, 1897 |
| Designations | |
Named after | Nephele |
| 1897 DN | |
| Main belt (Themis) | |
| Orbital characteristics | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 551.872 Gm (3.689 AU) |
| Perihelion | 387.107 Gm (2.588 AU) |
| 469.489 Gm (3.138 AU) | |
| Eccentricity | 0.175 |
| 2030.677 d (5.56 a) | |
Average orbital speed | 16.81 km/s |
| 210.253° | |
| Inclination | 1.827° |
| 117.417° | |
| 212.678° | |
| Physical characteristics | |
| Dimensions | 95.0 km |
| Mass | unknown |
Mean density | unknown |
| unknown | |
| unknown | |
| unknown | |
| Albedo | unknown |
| Temperature | unknown |
Spectral type | C |
| 8.72 | |
|
| |
431 Nephele is a large Themistian asteroid. It is spectral C-type and is probably composed of carbonaceous material.
It was discovered by Auguste Charlois on December 18, 1897 in Nice.
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