(142) Polana Main-belt Asteroid
Discovered on 28 January 1875 by J. Palisa at Pola.
Where Polana is today
Seen from above the solar system on 2026-10-14: Polana is 2.18 au from the Sun and 2.68 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 142 |
| Provisional designation | A875 BA |
| Orbit class | Main-belt Asteroid |
| Diameter | 54.8 km (#659 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0470 |
| Rotation period | 9.76 hours |
| Spectral type | F |
| Absolute magnitude (H) | 10.52 |
| Orbital period | 3.76 years |
| Semi-major axis | 2.42 au |
| Perihelion – aphelion | 2.10 – 2.74 au |
| Eccentricity | 0.133 |
| Inclination | 2.24° |
| Closest distance between its orbit and Earth's (MOID) | 1.09 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by J. Palisa
- (136) Austria
- (137) Meliboea
- (140) Siwa
- (143) Adria
- (151) Abundantia
- (153) Hilda
- (155) Scylla
- (156) Xanthippe
- (178) Belisana
- (182) Elsa
- (183) Istria
- (184) Dejopeja
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