357 Ninina
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| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery date | February 11, 1893 |
| Designations | |
| Alternative names | 1893 J |
| Minor planet category | Main belt |
| Orbital characteristics | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 506.111 Gm (3.383 AU) |
| Perihelion | 437.143 Gm (2.922 AU) |
| Semi-major axis | 471.627 Gm (3.153 AU) |
| Eccentricity | 0.073 |
| Orbital period | 2044.56 d (5.6 a) |
| Average orbital speed | 16.78 km/s |
| Mean anomaly | 131.137° |
| Inclination | 15.094° |
| Longitude of ascending node | 138.19° |
| Argument of perihelion | 247.693° |
| Physical characteristics | |
| Dimensions | 106.0 km |
| Mass | unknown |
| Mean density | unknown |
| Equatorial surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | unknown |
| Albedo | unknown |
| Temperature | unknown |
| Spectral type | unknown |
| Absolute magnitude (H) | 8.72 |
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357 Ninina is a large main-belt asteroid.
It was discovered by Auguste Charlois on February 11, 1893, in Nice.
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