(557) Violetta
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Asteroid (557) Violetta |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt |
| Major semi-axis | 2,443 AU |
| eccentricity | 0.099 |
| Perihelion - aphelion | 2.201 AU - 2.685 AU |
| Inclination of the orbit plane | 2.5 ° |
| Length of the ascending node | 292.9 ° |
| Argument of the periapsis | 194.8 ° |
| Time of passage of the perihelion | November 30, 2011 |
| Sidereal period | 3 a 299 d |
| Mean orbital velocity | 19.0 km / s |
| Physical Properties | |
| Medium diameter | approx. 23 km |
| Rotation period | 5 h 5 min |
| Absolute brightness | 12.1 mag |
| history | |
| Explorer | Max Wolf |
| Date of discovery | January 26, 1905 |
| Another name | 1905 PY, 1932 EH 1 , 1947 CD |
| 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. | |
(557) Violetta is an asteroid of the main belt , which on 26 January 1905 by German astronomer Max Wolf in Heidelberg was discovered.
The asteroid was after a character in the opera La traviata by Giuseppe Verdi named.