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Discovery
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| Discovered by | Auguste Charlois |
| Discovery date | January 29, 1894 |
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Designations
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| Alternate name(s) | 1894 AU |
| Minor planet category |
Main belt (Themis) |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 548.295 Gm (3.665 AU) |
| Perihelion | 391.269 Gm (2.615 AU) |
| Semi-major axis | 469.782 Gm (3.14 AU) |
| Eccentricity | 0.167 |
| Orbital period | 2032.575 d (5.56 a) |
| Average orbital speed | 16.81 km/s |
| Mean anomaly | 58.849° |
| Inclination | 2.65° |
| Longitude of ascending node | 93.222° |
| Argument of perihelion | 318.27° |
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Physical characteristics
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| Dimensions | 46.0 km |
| Mass | unknown |
| Mean density | unknown |
| Equatorial surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | unknown |
| Albedo | unknown |
| Temperature | unknown |
| Spectral type | C? |
| Absolute magnitude (H) | 9.91 |
383 Janina is a mid-sized Themistian asteroid. It is spectral C-type and is probably composed of primitive carbonaceous chondritic material.
It was discovered by Auguste Charlois on January 29, 1894 in Nice.
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