(308) Polyxo Main-belt Asteroid
Discovered on 31 March 1891 by A. Borrelly at Marseilles.
Where Polyxo is today
Seen from above the solar system on 2026-10-14: Polyxo is 2.85 au from the Sun and 2.75 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 308 |
| Provisional designation | A891 FA |
| Orbit class | Main-belt Asteroid |
| Diameter | 129 km (#130 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0470 |
| Rotation period | 12.0 hours |
| Spectral type | T |
| Absolute magnitude (H) | 8.17 |
| Orbital period | 4.56 years |
| Semi-major axis | 2.75 au |
| Perihelion – aphelion | 2.64 – 2.85 au |
| Eccentricity | 0.0382 |
| Inclination | 4.36° |
| Closest distance between its orbit and Earth's (MOID) | 1.63 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by A. Borrelly
- (99) Dike
- (110) Lydia
- (117) Lomia
- (120) Lachesis
- (146) Lucina
- (157) Dejanira
- (171) Ophelia
- (172) Baucis
- (173) Ino
- (198) Ampella
- (233) Asterope
- (240) Vanadis
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