(5142) Okutama
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Asteroid (5142) Okutama |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.5404 AU |
| eccentricity | 0.2738 |
| Perihelion - aphelion | 1.8449 AU - 3.2359 AU |
| Inclination of the orbit plane | 6.2749 ° |
| Length of the ascending node | 205.4057 ° |
| Argument of the periapsis | 192.5483 ° |
| Sidereal period | 4.05 a |
| Mean orbital velocity | 18.68 km / s |
| Physical Properties | |
| Rotation period | 3.803 h |
| Absolute brightness | 12.8 mag |
| Spectral class | SMASSII : Sq |
| history | |
| Explorer |
Tsutomu Hioki Shūji Hayakawa |
| Date of discovery | 18th December 1990 |
| Another name | 1990 YD , 1929 SN, 1933 SF, 1971 CE, 1974 YR, 1975 BN 1 , A921 TD |
| 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. | |
(5142) Okutama is an asteroid of the main belt , which on 18 December 1990 by the Japanese astronomer Tsutomu Hioki and Shuji Hayakawa at the observatory in Okutama ( IAU code 877) in Tokyo was discovered.
The asteroid is named after the observatory where it was discovered.
See also
Web links
- Asteroid Okutama: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- Asteroid Okutama in the Small-Body Database of NASA's Jet Propulsion Laboratory at the California Institute of Technology, Pasadena, USA
- (5142) Okutama in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).