(1138) Attica
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Asteroid (1138) Attica |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 3.1471 AU |
| eccentricity | 0.0682 |
| Perihelion - aphelion | 2.9324 AU - 3.3617 AU |
| Inclination of the orbit plane | 13.987 ° |
| Sidereal period | 5,583 a |
| Mean orbital velocity | 16.79 km / s |
| Physical Properties | |
| Medium diameter | approx. 24 km |
| Rotation period | ? |
| Absolute brightness | 11.4 mag |
| history | |
| Explorer | K. Reinmuth |
| Date of discovery | November 22, 1929 |
| Another name | 1929 WF, 1954 GK |
| 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. | |
(1138) Attica is an asteroid of the main belt that was discovered on November 22, 1929 by the German astronomer Karl Wilhelm Reinmuth in Heidelberg .
The name is derived from the Greek region of Attica .