(4797) Ako
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Asteroid (4797) Ako |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Hertha family |
| Major semi-axis | 2.4121 AU |
| eccentricity | 0.1837 |
| Perihelion - aphelion | 1.9690 AU - 2.8552 AU |
| Inclination of the orbit plane | 1.8128 ° |
| Length of the ascending node | 320.8682 ° |
| Argument of the periapsis | 77.8974 ° |
| Sidereal period | 3.75 a |
| Mean orbital velocity | 19.17 km / s |
| Physical Properties | |
| Rotation period | 4.085 h |
| Absolute brightness | 14.2 mag |
| history | |
| Explorer |
Toshirō Nomura Kōyō Kawanishi |
| Date of discovery | September 30, 1989 |
| Another name | 1989 SJ , 1978 VY 9 , 1985 QB 4 |
| 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. | |
(4797) Ako is an asteroid of the main belt , which on 30 September 1989 by the Japanese astronomer Toshirō Nomura and Koyo Kawanishi at Minami-Oda Observatory ( IAU code was discovered 374).
The asteroid belongs to the Nysa group, a group of asteroids named after (44) Nysa, which is also known as the Hertha family (after (135) Hertha).
(4797) Ako was named after the city of Akō in the Japanese prefecture of Hyōgo and its historic castle on the Seto Inland Sea .
See also
Web links
- Asteroid Ako: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- Asteroid Ako in the Small-Body Database of the NASA Jet Propulsion Laboratory at the California Institute of Technology, Pasadena, USA
- (4797) Ako in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
Individual evidence
- ^ The family membership of (4797) Ako in the AstDyS-2 database (English)