(457) Alleghenia
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Asteroid (457) Alleghenia |
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| Properties of the orbit ( animation ) | |
| Orbit type | Outer main belt |
| Major semi-axis | 3.093 AU |
| eccentricity | 0.176 |
| Perihelion - aphelion | 2.549 AU - 3.637 AU |
| Inclination of the orbit plane | 12.9 ° |
| Length of the ascending node | 249.8 ° |
| Argument of the periapsis | 128.3 ° |
| Time of passage of the perihelion | July 23, 2009 |
| Sidereal period | 5 a 161 d |
| Mean orbital velocity | 16.8 km / s |
| Physical Properties | |
| Medium diameter | 21 km |
| Absolute brightness | 11.0 mag |
| history | |
| Explorer | Max Wolf , Arnold Schwassmann |
| Date of discovery | September 15, 1900 |
| Another name | 1900 FJ, 1938 SA |
| 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. | |
(457) Alleghenia is an asteroid of the main belt that was discovered on September 15, 1900 by the German astronomers Max Wolf and Arnold Schwassmann in Heidelberg .
The asteroid is named after the US Allegheny Observatory .