(207) Hedda
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Asteroid (207) Hedda |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt |
| Major semi-axis | 2.284 AU |
| eccentricity | 0.029 |
| Perihelion - aphelion | 2.218 AU - 2.35 AU |
| Inclination of the orbit plane | 3.8 ° |
| Length of the ascending node | 29.3 ° |
| Argument of the periapsis | 194.6 ° |
| Time of passage of the perihelion | October 22, 2012 |
| Sidereal period | 3 a 165 d |
| Mean orbital velocity | 19.7 km / s |
| Physical Properties | |
| Medium diameter | 59 km |
| Albedo | 0.0552 |
| Rotation period | 30 h 6 min |
| Absolute brightness | 9.92 mag |
| Spectral class | C. |
| history | |
| Explorer | Johann Palisa |
| Date of discovery | October 17, 1879 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(207) Hedda is an asteroid of the inner main asteroid belt , which was discovered on October 17, 1879 by Johann Palisa .
The name is derived from Hedwig , the wife of the astronomer Friedrich August Theodor Winnecke .
Hedda orbits the Sun at a distance of 2.2178 ( perihelion ) to 2.3499 ( aphelion ) astronomical units in 3.4515 years . The orbit is inclined 3.8034 ° to the ecliptic , the orbital eccentricity is 0.0289.
Hedda is 59 kilometers in diameter. It has a dark, carbon-rich surface with an albedo of 0.055.