(271) Penthesilea
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Asteroid (271) Penthesilea |
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| Properties of the orbit ( animation ) | |
| Orbit type | Outer main belt |
| Major semi-axis | 3.006 AU |
| eccentricity | 0.1 |
| Perihelion - aphelion | 2.704 AU - 3.308 AU |
| Inclination of the orbit plane | 3.5 ° |
| Length of the ascending node | 335.5 ° |
| Argument of the periapsis | 59 ° |
| Time of passage of the perihelion | January 22, 2013 |
| Sidereal period | 5 a 77 d |
| Mean orbital velocity | 17.1 km / s |
| Physical Properties | |
| Medium diameter | (57.9 ± 3.3) km |
| Albedo | 0.0633 |
| Rotation period | 18 h 47 min |
| Absolute brightness | 9.8 likes |
| Spectral class | Pc |
| history | |
| Explorer | V. Knorre |
| Date of discovery | October 13, 1887 |
| 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. | |
(271) Penthesilea is an asteroid of the main belt that was discovered on October 13, 1887 by the Russian astronomer Viktor Knorre at the Berlin observatory .
The asteroid was named after Penthesilea , a queen of the Amazons from Greek mythology .