(5374) Hokutosei
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Asteroid (5374) Hokutosei |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 3.1749 AU |
| eccentricity | 0.0969 |
| Perihelion - aphelion | 2.8672 AU - 3.4826 AU |
| Inclination of the orbit plane | 12.2832 ° |
| Sidereal period | 5.66 a |
| Mean orbital velocity | 16.70 km / s |
| Physical Properties | |
| Medium diameter | 31.06 km (± 4.5) |
| Albedo | 0.0606 (± 0.022) |
| Absolute brightness | 11.4 mag |
| history | |
| Explorer | M. Yanai , K. Watanabe |
| Date of discovery | 4th January 1989 |
| Another name | 1989 AM 1 , 1980 PF 4 , 1981 UY 12 |
| 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. | |
(5374) hokutosei is an asteroid of the main belt , on 4 January 1989 by the Japanese astronomer Masayuki Yanai and Kazuro Watanabe at the observatory of Kitami ( IAU code was discovered 400).
It was named after the Hokutosei ( Japanese 北斗星 , dt. " Big Car "), a luxurious sleeper train that connects the cities of Sapporo and Tokyo and covers the 1000 km distance in a journey time of 16 hours.
See also
Web links
- Asteroid Hokutosei: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- Asteroid Hokutosei in the Small-Body Database of NASA's Jet Propulsion Laboratory at the California Institute of Technology, Pasadena, USA
- (5374) Hokutosei in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).