(3207) Spin wheel
Asteroid (3207) spin wheel |
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Properties of the orbit ( animation ) | |
Orbit type | Main outer belt asteroid |
Asteroid family | Koronis family |
Major semi-axis | 2.9079 AU |
eccentricity | 0.0602 |
Perihelion - aphelion | 2.7329 AU - 3.0829 AU |
Inclination of the orbit plane | 2.2201 ° |
Length of the ascending node | 167.8009 ° |
Argument of the periapsis | 155.7805 ° |
Time of passage of the perihelion | 7th November 2017 |
Sidereal period | 4.96 a |
Mean orbital velocity | 17.46 km / s |
Physical Properties | |
Medium diameter | 9.384 (± 0.214) km |
Albedo | 0.241 (± 0.066) |
Absolute brightness | 12.4 mag |
history | |
Explorer | Scolded John Bus |
Date of discovery | March 2, 1981 |
Another name | 1981 EY 25 , 1963 TR, 1978 RM 5 |
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. |
(3207) Spinwheel is an asteroid located in the main outer belt . It was discovered by the American astronomer Schelte John Bus on March 2, 1981 at the Siding Spring Observatory ( IAU code 413) in the Australian Warrumbungle National Park . The asteroid had already been sighted: on October 14, 1963 under the provisional designation 1963 TR at the Goethe Link Observatory in Indiana and on September 6, 1978 (1978 RM 5 ) at the Crimean Observatory in Nautschnyj .
The asteroid is a member of the Koronis family, a group of asteroids named after (158) Koronis . The timeless (non- osculating ) orbital elements of (3207) Spinrad are almost identical to those of three smaller asteroids if one assumes the absolute magnitude of 14.4, 15.3 and 15.7 compared to 12.4: (19270) 1995 VS 8 , (111521) 2001 YL 99 and (169235) 2001 SO 55 .
(3207) Spinrad was named on June 27, 1991 after the American astronomer Hyron Spinrad (1934-2015). Astronomer Ray L. Newburn wrote the dedication text for the name .
See also
Web links
- (3207) Spin wheel in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (3207) Spin wheel in the Small-Body Database of the Jet Propulsion Laboratory .
- Discovery Circumstances of (3207) Spinrad according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (3207) Spin wheel at the IAU Minor Planet Center (English)
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)