207 Hedda
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| Discovery | |
|---|---|
| Discovered by: | Johann Palisa |
| Discovery date: | October 17, 1879 |
| 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) |
| Avg. 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: | 9.92 |
207 Hedda is a big Main belt asteroid. It is a C-type asteroid, meaning that what it is made up of is primitive and that it is dark in colour.
It was found by Johann Palisa on October 17, 1879 in Pola and was named after Hedwig, wife of astronomer Friedrich A. T. Winnecke.
[change] References
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Albedo Compilation
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206 Hersilia | 207 Hedda | 208 Lacrimosa
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| Near-Earth asteroids · Main belt · Jupiter Trojans · Neptune Trojans · Comets · Kuiper belt · Oort cloud |
