(397) Vienna
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Asteroid (397) Vienna |
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| Properties of the orbit ( animation ) | |
| Orbit type | Middle main belt |
| Major semi-axis | 2,635 AU |
| eccentricity | 0.246 |
| Perihelion - aphelion | 1,986 AU - 3,284 AU |
| Inclination of the orbit plane | 12.8 ° |
| Length of the ascending node | 228.2 ° |
| Argument of the periapsis | 139.2 ° |
| Time of passage of the perihelion | November 19, 2009 |
| Sidereal period | 4 a 101 d |
| Mean orbital velocity | 18.1 km / s |
| Physical Properties | |
| Medium diameter | (43 ± 1.8) km |
| Albedo | 0.1776 |
| Rotation period | 15 h 29 min |
| Absolute brightness | 9.31 likes |
| Spectral class | S. |
| history | |
| Explorer | A. Charlois |
| Date of discovery | December 19, 1894 |
| Another name | 1894 BM |
| 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. | |
(397) Vienna is an asteroid of the main belt that was discovered by Auguste Charlois in Nice on December 19, 1894 .