(255) Oppavia Main-belt Asteroid
Discovered on 31 March 1886 by J. Palisa at Vienna.
Where Oppavia is today
Seen from above the solar system on 2026-10-14: Oppavia is 2.53 au from the Sun and 3.33 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 255 |
| Provisional designation | A886 FB |
| Orbit class | Main-belt Asteroid |
| Diameter | 56.9 km (#636 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0380 |
| Rotation period | 19.5 hours |
| Spectral type | X |
| Absolute magnitude (H) | 10.52 |
| Orbital period | 4.55 years |
| Semi-major axis | 2.75 au |
| Perihelion – aphelion | 2.53 – 2.96 au |
| Eccentricity | 0.0788 |
| Inclination | 9.46° |
| Closest distance between its orbit and Earth's (MOID) | 1.54 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 31 March 1886
More named asteroids discovered by J. Palisa
- (136) Austria
- (137) Meliboea
- (140) Siwa
- (142) Polana
- (143) Adria
- (151) Abundantia
- (153) Hilda
- (155) Scylla
- (156) Xanthippe
- (178) Belisana
- (182) Elsa
- (183) Istria
← (254) Augusta · (256) Walpurga →