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Discovery
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|---|---|
| Discovered by | Auguste Charlois |
| Discovery date | June 11, 1891 |
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Designations
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| Minor planet category |
Main belt (Koronis) |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 436.901 Gm (2.92 AU) |
| Perihelion | 429.728 Gm (2.873 AU) |
| Semi-major axis | 433.314 Gm (2.897 AU) |
| Eccentricity | 0.0080 |
| Orbital period | 1800.557 d (4.93 a) |
| Average orbital speed | 17.5 km/s |
| Mean anomaly | 150.595° |
| Inclination | 3.225° |
| Longitude of ascending node | 81.16° |
| Argument of perihelion | 41.832° |
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Physical characteristics
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|
| Dimensions | 24.0 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) | 9.89 |
311 Claudia is a typical Main belt asteroid.
It was discovered by Auguste Charlois on June 11, 1891 in Nice. The origin of the name of this asteroid remains unknown, as do many other of his discoveries.[1]
311 Claudia is one of the Koronis family of asteroids. A group of astronomers, including Lucy D’Escoffier Crespo da Silva and Richard P. Binzel, used observations made between 1998 through 2000 to determine the spin-vector alignment of these asteroids. The collaborative work resulted in the creation of 61 new individual rotation lightcurves to augment previous published observations.[2]
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