(747) Winchester
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Asteroid (747) Winchester |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.998 AU |
| eccentricity | 0.341 |
| Perihelion - aphelion | 1.975 AU - 4.021 AU |
| Inclination of the orbit plane | 18.2 ° |
| Length of the ascending node | 130.1 ° |
| Argument of the periapsis | 275.2 ° |
| Time of passage of the perihelion | July 11, 2010 |
| Sidereal period | 5 a 70 d |
| Mean orbital velocity | 16.7 km / s |
| Physical Properties | |
| Medium diameter | (172 ± 3) km |
| Albedo | 0.05 |
| Rotation period | 9 h 25 min |
| Absolute brightness | 7.7 likes |
| Spectral class | P-type or C-type |
| history | |
| Explorer | JH Metcalf |
| Date of discovery | March 7, 1913 |
| Another name | 1913 QZ |
| 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. | |
(747) Winchester is an asteroid of the main belt , which on 7 March 1913 by the American astronomer Joel Hastings Metcalf was discovered.
The asteroid was named after the city of Winchester , Massachusetts , where it was discovered.