(2640) Hallstrom
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Asteroid (2640) Hallstrom |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.3978 AU |
| eccentricity | 0.0877 |
| Perihelion - aphelion | 2.1876 AU - 2.608 AU |
| Inclination of the orbit plane | 6.649 ° |
| Sidereal period | 3.713 a |
| Mean orbital velocity | 19.29 km / s |
| Physical Properties | |
| Medium diameter | ? km |
| Albedo | ? |
| Rotation period | ? H |
| Absolute brightness | 12.9 mag |
| Spectral class | V |
| history | |
| Explorer | Liisi Oterma |
| Date of discovery | March 18, 1941 |
| Another name | 1941 FN, 1967 ET, 1976 SG 5 |
| 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. | |
(2640) Hällström is an asteroid of the main belt , which on 18 March 1941 by the Finnish astronomer liisi oterma in Turku was discovered.
The asteroid is reminiscent of the Finnish physicist Gustav Gabriel Hällström .