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431 Nephele
431 Nephele is a large Themistian asteroid. It is spectral C-type and is probably composed of carbonaceous material.
| Discovery |
|---|
| Auguste Charlois |
| 18 December 1897 |
| /ˈnɛfəliː/ |
| Nephele |
| 1897 DN |
| Main belt (Themis) |
| Nephelean /nɛfɪˈliːən/ |
| Epoch 31 July 2016 (JD 2457600.5) |
| Uncertainty parameter 0 |
| 113.52 yr (41462 d) |
| 3.67837 AU (550.276 Gm) |
| 2.61178 AU (390.717 Gm) |
| 3.14507 AU (470.496 Gm) |
| 0.16957 |
| 5.58 yr (2037.3 d) |
| 230.611° |
| 0° 10m 36.152s / day |
| 1.82752° |
| 117.229° |
| 216.161° |
| 101.900±0.988 km94.58±1.03 km |
| (7.44 ± 4.14/2.39)×1017 kg |
| 1.678 ± 0.935/0.54 g/cm3 |
| 18.821 h (0.7842 d) |
| 0.055±0.005 |
| C |
| 9.12 |
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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 18 December 1897 in Nice.
- 431 Nephele at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
- 431 Nephele at the JPL Small-Body Database
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