308 Polyxo

Minor Planet | name=308 Polyxo
discoverer=A. Borrelly
discovery_date=March 31, 1891
designations=
category=Main belt
epoch=30 January, 2005 (JD 2453400.5)
semimajor=411.542 Gm (2.751 AU)
perihelion=395.843 Gm (2.646 AU)
aphelion=427.242 Gm (2.856 AU)
eccentricity=0.038
period=1666.571 d (4.56 a)
inclination=4.364°
asc_node=181.927°
arg_peri=109.987°
mean_anomaly=248.11°
speed=17.96 km/s
dimensions=141.0 km
mass="unknown"
density="unknown"
gravity="unknown"
escape_velocity="unknown"
rotation="unknown"
spectral_class=T
abs_mag=8.17
albedo="unknown"
temperature="unknown"

308 Polyxo is a very large Main belt asteroid. It is classified as a rare T-type asteroid.

It was discovered by A. Borrelly on March 31, 1891 in Marseilles.