(20089) Aineobrien Main-belt Asteroid
Discovered on 10 August 1994 by E. W. Elst at La Silla.
Áine Clare O’Brien (b. 1991) is a British planetary scientist at the University of Glasgow, investigating organic compounds in meteorites, and a member of the UK Fireball Alliance team that found the Winchcombe meteorite in 2021. She is a passionate science communicator and advocate for a more inclusive diverse planetary science community.Naming citation (WGSBN Bull. 6, #11, 8), IAU / Minor Planet Center, via NASA/JPL
Where Aineobrien is today
Seen from above the solar system on 2026-10-14: Aineobrien is 3.09 au from the Sun and 4.07 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20089 |
| Provisional designation | 1994 PA14 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.99 km (#15,231 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.216 |
| Absolute magnitude (H) | 15.05 |
| Orbital period | 4.84 years |
| Semi-major axis | 2.86 au |
| Perihelion – aphelion | 2.63 – 3.09 au |
| Eccentricity | 0.0821 |
| Inclination | 1.53° |
| Closest distance between its orbit and Earth's (MOID) | 1.62 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 10 August 1994
- (6836) Paranal
- (7661) Reincken
- (7960) Condorcet
- (8205) Van Dijck
- (8890) Montaigne
- (9079) Gesner
- (9205) Eddywally
- (9392) Cavaillon
- (9393) Apta
- (9394) Manosque
- (9395) Saint Michel
- (9638) Fuchs