Discovered by A. Borrelly Named after Polyxo Observation arc 124.63 yr (45521 d) Inclination 4.36141° Discoverer Alphonse Borrelly Asteroid group Asteroid belt | Discovery date 31 March 1891 Minor planet category Main belt Discovered 31 March 1891 Orbits Sun Discovery site Marseille Observatory | |
Aphelion 2.85974 AU (427.811 Gm) Similar 423 Diotima, 165 Loreley, 360 Carlova, 230 Athamantis, 375 Ursula | ||
308 Polyxo is a main-belt asteroid that was discovered by A. Borrelly on March 31, 1891, in Marseilles. It is classified as a rare T-type asteroid.
Photometric measurements reported in 1983 give a rotation period of 12.03 hours and a brightness variation of 0.20 in magnitude. The adaptive optics instrument at the W. M. Keck Observatory shows an oblate object with a diameter of 130 km. The size ratio between the major and minor axes is 1.26 ± 0.11.
References
308 Polyxo Wikipedia(Text) CC BY-SA