(308) Polyxo
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Asteroid (308) Polyxo |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.749 AU |
| eccentricity | 0.037 |
| Perihelion - aphelion | 2.648 AU - 2.85 AU |
| Inclination of the orbit plane | 4.4 ° |
| Length of the ascending node | 181.9 ° |
| Argument of the periapsis | 112.6 ° |
| Time of passage of the perihelion | February 3, 2011 |
| Sidereal period | 4 a 204 d |
| Mean orbital velocity | 18.0 km / s |
| Physical Properties | |
| Medium diameter | 141 km |
| Albedo | 0.05 |
| Rotation period | 12.0 h |
| Absolute brightness | 8.2 likes |
| Spectral class | T |
| history | |
| Explorer | A. Borrelly |
| Date of discovery | March 31, 1891 |
| 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. | |
(308) Polyxo is an asteroid of the main asteroid belt discovered by A. Borrelly at the Marseille Observatory on March 31, 1891 .
The heavenly body was named after Polyxo , the mother of Antiope from Greek mythology .
Polyxo moves at a distance of 2.6 ( perihelion ) to 2.9 ( aphelion ) astronomical units in 4.6 years around the sun . The orbit is inclined 4.4 ° to the ecliptic , the orbital eccentricity is 0.04.
Polyxo has a diameter of 141 kilometers. It has a dark surface with an albedo of 0.05. It rotates around its own axis in around 12 hours.