(1218) Aster
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Asteroid (1218) Aster |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.2634 AU |
| eccentricity | 0.1086 |
| Perihelion - aphelion | 2.0174 AU - 2.5093 AU |
| Inclination of the orbit plane | 3.161 ° |
| Sidereal period | 3,405 a |
| Mean orbital velocity | 19.80 km / s |
| Physical Properties | |
| Medium diameter | ? km |
| Dimensions | ? kg |
| Albedo | ? |
| Medium density | ? g / cm³ |
| Rotation period | ? |
| Absolute brightness | 13.1 mag |
| Spectral class | ? |
| history | |
| Explorer | K. Reinmuth |
| Date of discovery | January 29, 1932 |
| Another name | 1932 BJ, 1978 TJ 5 , 1978 VQ TJ 12 |
| 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. | |
(1218) Aster is an asteroid of the main belt that was discovered on January 29, 1932 by the German astronomer Karl Wilhelm Reinmuth at the Heidelberg-Königstuhl State Observatory at the University of Heidelberg .
The asteroid is named after the genus of asters .