240 Vanadis
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Discovery
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| Discovered by | A. Borrelly |
| Discovery date | August 27, 1884 |
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Designations
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| Alternative names | n/a |
| Minor planet category |
Main belt |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 480.857 Gm (3.214 AU) |
| Perihelion | 316.219 Gm (2.114 AU) |
| Semi-major axis | 398.538 Gm (2.664 AU) |
| Eccentricity | 0.207 |
| Orbital period | 1588.204 d (4.35 a) |
| Average orbital speed | 18.25 km/s |
| Mean anomaly | 188.424° |
| Inclination | 2.105° |
| Longitude of ascending node | 115.225° |
| Argument of perihelion | 300.575° |
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Physical characteristics
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| Dimensions | 104.0 km |
| Mass | unknown |
| Mean density | unknown |
| Equatorial surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | 10.64 h |
| Albedo | 0.041 |
| Temperature | unknown |
| Spectral type | C |
| Absolute magnitude | 9.0 |
240 Vanadis is a fairly large Main belt asteroid. This very dark asteroid is classified as a C-type asteroid and is probably composed of primitive carbonaceous material.
It was discovered by A. Borrelly on August 27, 1884 in Marseilles and was named after Freyja (Vanadis), the Norse fertility goddess.
[edit] References
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
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