(977) Philippa Main-belt Asteroid
Discovered on 6 April 1922 by B. Jekhovsky at Algiers.
Where Philippa is today
Seen from above the solar system on 2026-10-14: Philippa is 3.09 au from the Sun and 4.07 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 977 |
| Provisional designation | A922 GA |
| Orbit class | Main-belt Asteroid |
| Diameter | 65.5 km (#517 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0510 |
| Rotation period | 15.4 hours |
| Spectral type | C |
| Absolute magnitude (H) | 9.87 |
| Orbital period | 5.51 years |
| Semi-major axis | 3.12 au |
| Perihelion – aphelion | 3.05 – 3.18 au |
| Eccentricity | 0.0205 |
| Inclination | 15.2° |
| Closest distance between its orbit and Earth's (MOID) | 2.09 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.