(1272) Gefion
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Asteroid (1272) Gefion |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| family | Gefion family |
| Major semi-axis | 2.7844 AU |
| eccentricity | 0.1519 |
| Perihelion - aphelion | 2.3615 AU - 3.2072 AU |
| Inclination of the orbit plane | 8.427 ° |
| Sidereal period | 4,646 a |
| Mean orbital velocity | 17.85 km / s |
| Physical Properties | |
| Medium diameter | ? km |
| Dimensions | ? kg |
| Albedo | ? |
| Medium density | ? g / cm³ |
| Rotation period | ? H |
| Absolute brightness | 12.9 mag |
| Spectral class | S (tholen) |
| history | |
| Explorer | K. Reinmuth |
| Date of discovery | October 10, 1931 |
| Another name | 1931 TZ 1 , A917 SF |
| 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. | |
(1272) Gefion is an asteroid of the main belt , which on 10 October 1931 by the German astronomer Karl Wilhelm Reinmuth at Heidelberg State Observatory King chair of the University of Heidelberg was discovered.
The asteroid is namesake of the Gefion family, a group of asteroids of the central main belt, the members of which belong to the S-type. In the past, the group was also referred to as the Ceres family (after (1) Ceres , Vincenzo Zappalà 1995) and the Minerva family (after (93) Minerva ).
The name of the asteroid is derived from the Gefion fountain in the Danish capital, Copenhagen . Gefion is a character from Norse mythology.