(5139) Rumoi
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Asteroid (5139) Rumoi |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Koronis family |
| Major semi-axis | 2.8534 AU |
| eccentricity | 0.0341 |
| Perihelion - aphelion | 2.7561 AU - 2.9508 AU |
| Inclination of the orbit plane | 2.8500 ° |
| Length of the ascending node | 57.0908 ° |
| Argument of the periapsis | 224.7187 ° |
| Sidereal period | 4.82 a |
| Mean orbital velocity | 17.63 km / s |
| Physical Properties | |
| Medium diameter | approx. 12 km |
| Rotation period | 3.257 h |
| Absolute brightness | 12.0 mag |
| history | |
| Explorer |
Masaru Mukai Masanori Takeishi |
| Date of discovery | November 13, 1990 |
| Another name | 1990 VH 4 , 1956 UM, 1959 JH, 1973 FG 2 , 1989 QK 1 |
| 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. | |
(5139) Rumoi is an asteroid of the main belt , which on 13 November 1990 by the Japanese astronomer Masaru Mukai and Masanori Takeishi at the observatory in Kagoshima ( IAU code 364) on the island of Kyushu was discovered.
The asteroid is a member of the Koronis family, a group of asteroids named after (158) Koronis.
(5139) Rumoi was named after the city of Rumoi in the north of the island of Hokkaidō in the Rumoi sub-prefecture .
See also
Individual evidence
- ↑ The family membership of (5139) Rumoi in the AstDyS-2 database (English)
Web links
- Asteroid Rumoi: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- Asteroid Rumoi in the Small-Body Database of NASA's Jet Propulsion Laboratory at the California Institute of Technology, Pasadena, USA
- (5139) Rumoi in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).