(476) Hedwig
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Asteroid (476) Hedwig |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2,649 AU |
| eccentricity | 0.075 |
| Perihelion - aphelion | 2.451 AU - 2.847 AU |
| Inclination of the orbit plane | 10.9 ° |
| Length of the ascending node | 286.5 ° |
| Argument of the periapsis | 0.6 ° |
| Time of passage of the perihelion | December 13, 2008 |
| Sidereal period | 4 a 113 d |
| Mean orbital velocity | 18.3 km / s |
| Physical Properties | |
| Medium diameter | approx. 117 km |
| Albedo | 0.05 |
| Rotation period | 27.3 h |
| Absolute brightness | 8.6 likes |
| Spectral class | P |
| history | |
| Explorer | Luigi Carnera |
| Date of discovery | 17th August 1901 |
| Another name | 1901 GQ, 1974 PL |
| 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. | |
(476) Hedwig is an asteroid of the main belt that was discovered on August 17, 1901 by the Italian astronomer Luigi Carnera in Heidelberg .
The asteroid is named after the wife of the astronomer Elis Strömgren .