Asteroid: Ceres (1) Aliases: none Property Value Source Albedo 0.10 whatever Radius unknown Diameter 913 km whatever Rotation Period unknown Semi-major axis 2.767 whatever Eccentricity 0.097 whatever Period unknown Inclination unknown Perihelion Date unknown Polarization Zero-crossing unknown Slope at inversion unknown U-B 0.43 whatever B-V 0.72 whatever Absolute Magnitude 3.32 whatever Toxonomic Classification G0 whatever