(81) Terpsichore
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Asteroid (81) Terpsichore |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.857 AU |
| eccentricity | 0.207 |
| Perihelion - aphelion | 2.265 AU - 3.449 AU |
| Inclination of the orbit plane | 7.8 ° |
| Length of the ascending node | 1.1 ° |
| Argument of the periapsis | 51.4 ° |
| Time of passage of the perihelion | October 31, 2009 |
| Sidereal period | 4 a 303 d |
| Mean orbital velocity | 17.4 km / s |
| Physical Properties | |
| Medium diameter | 119 km |
| Albedo | 0.05 |
| Rotation period | 10.9 h |
| Absolute brightness | 8.5 likes |
| Spectral class | C. |
| history | |
| Explorer | EWL temple |
| Date of discovery | September 30, 1864 |
| 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. | |
(81) Terpsichore is an asteroid of the main belt that was discovered on September 30, 1864 by the German astronomer Ernst Wilhelm Leberecht Tempel .
The asteroid was named after Terpsichore , the muse of choral poetry and dance.