(545) Messalina
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Asteroid (545) Messalina |
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| Properties of the orbit ( animation ) | |
| Orbit type | Outer main belt |
| Major semi-axis | 3,201 AU |
| eccentricity | 0.169 |
| Perihelion - aphelion | 2.661 AU - 3.741 AU |
| Inclination of the orbit plane | 11.1 ° |
| Length of the ascending node | 334.2 ° |
| Argument of the periapsis | 326.4 ° |
| Time of passage of the perihelion | 23 August 2011 |
| Sidereal period | 5 a 265 d |
| Mean orbital velocity | 16.5 km / s |
| Physical Properties | |
| Medium diameter | 111.30 km |
| Albedo | 0.0415 |
| Rotation period | 7 h 12 min |
| Absolute brightness | 8.84 likes |
| Spectral class | CD |
| history | |
| Explorer | Paul Goetz |
| Date of discovery | October 3, 1904 |
| Another name | 1904 OY, 1949 YH, 1973 YO 4 |
| 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. | |
(545) Messalina is an asteroid of the main belt that was discovered on October 3, 1904 by the German astronomer Paul Götz in Heidelberg .
The asteroid is named after the Roman Empress Valeria Messalina .