(309) Fraternitas Main-belt Asteroid
Discovered on 6 April 1891 by J. Palisa at Vienna.
Where Fraternitas is today
Seen from above the solar system on 2026-10-14: Fraternitas is 2.47 au from the Sun and 3.20 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 309 |
| Provisional designation | A891 GA |
| Orbit class | Main-belt Asteroid |
| Diameter | 41.1 km (#943 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0560 |
| Rotation period | 22.4 hours |
| Absolute magnitude (H) | 10.65 |
| Orbital period | 4.35 years |
| Semi-major axis | 2.66 au |
| Perihelion – aphelion | 2.35 – 2.97 au |
| Eccentricity | 0.117 |
| Inclination | 3.71° |
| Closest distance between its orbit and Earth's (MOID) | 1.34 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
- (142) Polana
- (143) Adria
- (151) Abundantia
- (153) Hilda
- (155) Scylla
- (156) Xanthippe
- (178) Belisana
- (182) Elsa
- (183) Istria
← (308) Polyxo · (310) Margarita →