268 Adorea
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| Discovery A | |
|---|---|
| Discoverer | A. Borrelly |
| Discovery date | June 8, 1887 |
| Alternate designations B |
n/a |
| Category | Main belt (Themis) |
| Orbital elements C | |
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| Eccentricity (e) | 0.132 |
| Semi-major axis (a) | 463.013 Gm (3.095 AU) |
| Perihelion (q) | 401.688 Gm (2.685 AU) |
| Aphelion (Q) | 524.338 Gm (3.505 AU) |
| Orbital period (P) | 1988.806 d (5.45 a) |
| Mean orbital speed | 16.93 km/s |
| Inclination (i) | 2.437° |
| Longitude of the ascending node (Ω) |
120.977° |
| Argument of perihelion (ω) |
70.842° |
| Mean anomaly (M) | 260.208° |
| Physical characteristics D | |
| Dimensions | 140.0 km |
| Mass | unknown |
| Density | unknown |
| Surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | 9.44 h |
| Spectral class | FC |
| Absolute magnitude | 8.28 |
| Albedo (geometric) | 0.044 |
| Mean surface temperature |
unknown |
268 Adorea is a very large Main belt asteroid. It is classified as a primitive carbonaceous F-type/C-type asteroid.
Adorea is one of the Themis family members, meaning that it is a fragment of the original body that shattered in an ancient cataclysm that resulted in the formation of the family.
It was discovered by A. Borrelly on June 8, 1887 in Marseilles.
[edit] References
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
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