(2249) Yamamoto
Asteroid (2249) Yamamoto |
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Properties of the orbit ( animation ) | |
Orbit type | Main belt asteroid |
Major semi-axis | 3.1852 AU |
eccentricity | 0.0866 |
Perihelion - aphelion | 2.9093 AU - 3.4612 AU |
Inclination of the orbit plane | 4.0932 ° |
Sidereal period | 5.68 a |
Mean orbital velocity | 16.68 km / s |
Physical Properties | |
Medium diameter | 44.71 km (± 3.1) |
Albedo | 0.0352 |
Absolute brightness | 11.0 mag |
history | |
Explorer | K. Reinmuth |
Date of discovery | April 6, 1942 |
Another name | 1942 GA, 1932 PK, 1949 OX, 1968 WA, 1971 HY, 1972 RM, 1976 GX 5 , 1978 RJ 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. |
(2249) Yamamoto is an asteroid of the main belt that was discovered on April 6, 1942 by the German astronomer Karl Wilhelm Reinmuth at the State Observatory in Heidelberg-Königstuhl ( IAU code 024) in Heidelberg .
The asteroid was named after the Japanese astronomer Yamamoto Issei (1889-1959), who was the first president of the Astronomical Society (天文 同好 会, Tenmon Dōkōkai) and director of the Kwasan Observatory in Kyoto .
See also
Web links
- Asteroid Yamamoto: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- (2249) Yamamoto in the Small-Body Database of the Jet Propulsion Laboratory (English).
- (2249) Yamamoto in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).