(18343) Asja Main-belt Asteroid
Discovered on 2 October 1989 by E. W. Elst at Smolyan.
Asja Geyer-Fischer (b. 1934) is a splendid pianist with a great love for Mozart and Chopin. She is an especially good teacher for children. In 1962 she followed her husband, astronomer E. H. Geyer to the Boyden Observatory, South Africa, where he had been appointed Director of the observatory for two years.Naming citation (MPC batch dated 2018-05-29), IAU / Minor Planet Center, via NASA/JPL
Where Asja is today
Seen from above the solar system on 2026-10-14: Asja is 1.95 au from the Sun and 1.88 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 18343 |
| Provisional designation | 1989 TN |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.41 km (#14,196 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.142 |
| Absolute magnitude (H) | 14.36 |
| Orbital period | 3.75 years |
| Semi-major axis | 2.41 au |
| Perihelion – aphelion | 1.94 – 2.88 au |
| Eccentricity | 0.195 |
| Inclination | 3.53° |
| Closest distance between its orbit and Earth's (MOID) | 0.932 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 2 October 1989
- (4264) Karljosephine
- (5476) Mulius
- (5907) Rhigmus
- (7754) Gopalan
- (10512) Yamandu
- (10513) Mackie
- (11868) Kleinrichert