| Orbital characteristics | |
|---|---|
| Orbit type | Main belt |
| Semimajor axis | 2.774 AU |
| Eccentricity | 0.2299 |
| Orbital period | 4.61 years |
| Inclination | 34.84° |
| Physical characteristics | |
| Diameter | 570×525×482 km |
| Mass | 3.18×1020 kg |
| Density | 4.2 g/cm3 |
| Rotation period | 9h 55.5m |
| Spectral class | U |
| Albedo | 0.14 |
| History | |
| Discoverer | H. Olbers, 1802 |
2 Pallas is the second largest asteroid (and second asteroid discovered). Pallas was discovered (and named) by Olbers, in 1802. Pallas was the Greek god of wisdom. The asteroid is noticeable for its nearly circular orbit.