(55) Pandora Main-belt Asteroid
Discovered on 10 September 1858 by G. Searle at Albany.
👶 Pandora as a baby name🐶 Pandora as a dog name🐱 Pandora as a cat name
Where Pandora is today
Seen from above the solar system on 2026-10-14: Pandora is 3.05 au from the Sun and 3.94 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 55 |
| Provisional designation | A858 RB |
| Orbit class | Main-belt Asteroid |
| Diameter | 84.8 km (#337 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.204 |
| Rotation period | 4.80 hours |
| Spectral type | M |
| Absolute magnitude (H) | 7.82 |
| Orbital period | 4.58 years |
| Semi-major axis | 2.76 au |
| Perihelion – aphelion | 2.36 – 3.16 au |
| Eccentricity | 0.145 |
| Inclination | 7.18° |
| Closest distance between its orbit and Earth's (MOID) | 1.36 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 10 September 1858
← (54) Alexandra · (56) Melete →