(5591) Koyo
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Asteroid (5591) Koyo |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Hoffmeister family |
| Major semi-axis | 2.7805 AU |
| eccentricity | 0.0841 |
| Perihelion - aphelion | 2.5466 AU - 3.0144 AU |
| Inclination of the orbit plane | 4.2280 ° |
| Sidereal period | 4.64 a |
| Mean orbital velocity | 17.86 km / s |
| Physical Properties | |
| Absolute brightness | 13.1 mag |
| Spectral class | SMASSII: Cb |
| history | |
| Explorer | Takeshi Urata |
| Date of discovery | November 10, 1990 |
| Another name | 1990 VF 2 , 1987 BG 3 , 1985 PW 1 , 1981 WG 8 |
| 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. | |
(5591) Koyo is an asteroid of the main belt , which on 10 November 1990 by Japanese astronomers Takeshi Urata was discovered.
The asteroid was named after Koyo Kawanishi , a Japanese astronomer.