(2153) Akiyama
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Asteroid (2153) Akiyama |
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| Properties of the orbit ( animation ) | |
| Orbit type | Outer main belt |
| Asteroid family | Themis family |
| Major semi-axis | 3.124 AU |
| eccentricity | 0.152 |
| Perihelion - aphelion | 2,649 AU - 3,600 AU |
| Inclination of the orbit plane | 1.184 ° |
| Length of the ascending node | 47.746 ° |
| Argument of the periapsis | 31.678 ° |
| Time of passage of the perihelion | October 12, 2016 |
| Sidereal period | 5.52 a |
| Physical Properties | |
| Medium diameter | 23.166 (± 0.279) km |
| Albedo | 0.057 (± 0.008) |
| Rotation period | 12.5325 |
| Absolute brightness | 12.0 mag |
| history | |
| Explorer | Oak Ridge Observatory |
| Date of discovery | December 1, 1978 |
| Another name | 1978 XD; 1955 UQ 1 ; 1972 YA; 1973 AK 3 ; 1977 VW; 1979 FS |
| 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. | |
(2153) Akiyama ( 1978 XD ; 1955 UQ 1 ; 1972 YA ; 1973 AK 3 ; 1977 VW ; 1979 FS ) is an asteroid of the main outer belt belonging to the Themis family and located on December 1, 1978 at the Oak Ridge Observatory (then as Agassiz Station part of the Harvard College Observatory ).
designation
The asteroid was named after Kaoru Akiyama (1901-1970), a professor at Hōsei University from 1930 to 1940 and 1949 to 1970. He was known for his work on asteroids. Together with Kiyotsugu Hirayama , after whom the asteroid (1999) Hirayama was named, he explored the orbit of the asteroid (153) Hilda .
Web links
- Asteroid Akiyama: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- (2153) Akiyama in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
Individual evidence
- ^ Lutz D. Schmadel : Dictionary of Minor Planet Names . Fifth Revised and Enlarged Edition. Ed .: Lutz D. Schmadel. 5th edition. Springer Verlag , Berlin , Heidelberg 2003, ISBN 978-3-540-29925-7 , pp. 175 (English, 992 pp., Link.springer.com [ONLINE; accessed on September 8, 2016] Original title: Dictionary of Minor Planet Names . First edition: Springer Verlag, Berlin, Heidelberg 1992): “Named in memory of Kaoru Akiyama”