(2391) Tomita
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Asteroid (2391) Tomita |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.4403 AU |
| eccentricity | 0.1344 |
| Perihelion - aphelion | 2.1124 AU - 2.7681 AU |
| Inclination of the orbit plane | 3.0110 ° |
| Length of the ascending node | 163.3279 ° |
| Argument of the periapsis | 282.7557 ° |
| Sidereal period | 3.81 a |
| Mean orbital velocity | 19.06 km / s |
| Physical Properties | |
| Medium diameter | approx. 18 km |
| Rotation period | 7.9533 h |
| Absolute brightness | 12.5 mag |
| history | |
| Explorer | Karl Wilhelm Reinmuth |
| Date of discovery | January 9, 1957 |
| Another name | 1957 AA , 1929 VX, 1938 BF, 1942 DF, 1957 BA, 1977 KM, 1978 PA 4 , 1980 DC 6 |
| 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. | |
(2391) Tomita is an asteroid of the main belt that was discovered on January 9, 1957 by the German astronomer Karl Wilhelm Reinmuth at the State Observatory in Heidelberg-Königstuhl ( IAU code 024) near Heidelberg .
The asteroid was named after the Japanese astronomer Kōichirō Tomita (1925-2006), who set his observation focus on researching comets and discovered several asteroids.
See also
Web links
- Asteroid Tomita: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- (2391) Tomita in the Small-Body Database of the Jet Propulsion Laboratory (English).
- (2391) Tomita in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).