(8991) Solidarity Main-belt Asteroid
Discovered on 6 August 1980 by European Southern Observatory at La Silla.
Named by the Committee for Small-Body Nomenclature to honor the solidarity of people around the world with both victims and survivors of terrorist attacks like those on New York and Washington on 2001 Sept. 11, in the goal of eliminating terrorism from the world.Naming citation (20011002/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Solidarity is today
Seen from above the solar system on 2026-10-14: Solidarity is 2.55 au from the Sun and 2.35 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8991 |
| Provisional designation | 1980 PV1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.38 km (#6,236 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.174 |
| Rotation period | 5.24 hours |
| Absolute magnitude (H) | 13.09 |
| Orbital period | 4.65 years |
| Semi-major axis | 2.78 au |
| Perihelion – aphelion | 2.26 – 3.30 au |
| Eccentricity | 0.187 |
| Inclination | 6.80° |
| Closest distance between its orbit and Earth's (MOID) | 1.26 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 6 August 1980
- (2522) Triglav
- (2523) Ryba
- (2544) Gubarev
- (2570) Porphyro
- (3908) Nyx
- (4170) Semmelweis
- (6263) Druckmuller
- (7860) Zahnle
- (8066) Poldimeri
- (8617) Fellous
- (11005) Waldtrudering