(4714) Toyohiro
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Asteroid (4714) Toyohiro |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Eos family |
| Major semi-axis | 3.0192 AU |
| eccentricity | 0.1262 |
| Perihelion - aphelion | 2.6381 AU - 3.4003 AU |
| Inclination of the orbit plane | 9.8435 ° |
| Sidereal period | 5.25 a |
| Mean orbital velocity | 17.14 km / s |
| Physical Properties | |
| Medium diameter | approx. 19 km in diameter |
| Absolute brightness | 11.5 likes |
| history | |
| Explorer |
Tetsuya Fujii Kazuo Watanabe |
| Date of discovery | September 29, 1989 |
| Another name | 1989 SH, 1978 GD 4 , 1978 JG 3 , 1986 SL |
| 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. | |
(4714) Toyohiro is an asteroid of the main belt , which on 29 September 1989 by the Japanese amateur astronomers Tetsuya Fujii and Kazuo Watanabe at Kitami Observatory ( IAU code 400) in the prefecture of Hokkaido was discovered.
The asteroid was named after the Japanese journalist and astronaut Toyohiro Akiyama (* 1942), who in December 1990 became the first Japanese to fly into space on board Soyuz TM-11 and spent a week on the Mir space station .
See also
Web links
- Asteroid Toyohiro: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- (4714) Toyohiro in the Small-Body Database of the Jet Propulsion Laboratory (English).
- (4714) Toyohiro in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).