207 Hedda
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| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | October 17, 1879 |
| Designations | |
| Alternative names |
1932 CL1, 1934 XJ, 1953 BF |
| Minor planet category | Main belt |
| Orbital characteristics | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 351.538 Gm (2.35 AU) |
| Perihelion | 331.773 Gm (2.218 AU) |
| Semi-major axis | 341.655 Gm (2.284 AU) |
| Eccentricity | 0.029 |
| Orbital period | 1260.619 d (3.45 a) |
| Average orbital speed | 19.71 km/s |
| Mean anomaly | 275.242° |
| Inclination | 3.804° |
| Longitude of ascending node | 29.292° |
| Argument of perihelion | 193.504° |
| Physical characteristics | |
| Dimensions | 59.0 km |
| Mass | unknown |
| Mean density | unknown |
| Equatorial surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | unknown |
| Albedo | 0.055 |
| Temperature | unknown |
| Spectral type | C |
| Absolute magnitude (H) | 9.92 |
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207 Hedda is a sizeable Main belt asteroid. It is a C-type asteroid, meaning it is primitive in composition and dark in colour.
It was discovered by Johann Palisa on October 17, 1879 in Pola and was named after Hedwig, wife of astronomer Friedrich A. T. Winnecke.
References
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Albedo Compilation
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