(2640) Hallstrom
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 .