2 Pallas
Appearance
2 Pallas is the 2nd largest asteroid and second asteroid discovered, by H. Olbers in 1802.
Diameter (km) 570 x 525 x 482
Mass 1015 318,000
Rotaional period 7.811 hrs
Orbital period 4.61 yrs
Spectral class U
Semimajor axis 2.774 AU
Orbital eccentricity 0.2299
Orbital inclination 34.84 deg