(390) Alma
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Asteroid (390) Alma |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2,652 AU |
| eccentricity | 0.132 |
| Perihelion - aphelion | 2.302 AU - 3.002 AU |
| Inclination of the orbit plane | 12.2 ° |
| Length of the ascending node | 305.3 ° |
| Argument of the periapsis | 190.7 ° |
| Time of passage of the perihelion | August 18, 2010 |
| Sidereal period | 4 a 116 d |
| Mean orbital velocity | 18.2 km / s |
| Physical Properties | |
| Medium diameter | approx. 24 km |
| Albedo | 0.22 |
| Rotation period | 3.7 h |
| Absolute brightness | 10.4 mag |
| history | |
| Explorer | G. Bigourdan |
| Date of discovery | March 24, 1894 |
| 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. | |
(390) Alma is an asteroid of the main belt , which on 24 March 1894 by the French astronomer Guillaume Bigourdan was discovered.