(73693) Dorschner Main-belt Asteroid
Discovered on 12 September 1991 by Borngen, F., Schmadel, L. D. at Tautenburg.
German astronomer Johann M. Dorschner (b. 1939) researched and lectured at the Astrophysical Institute of the University of Jena. His main research field was interstellar and circumstellar dust. He established the Jena laboratory astrophysics branch. The name was suggested by the first discoverer.Naming citation (20040504/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Dorschner is today
Seen from above the solar system on 2026-10-14: Dorschner is 3.40 au from the Sun and 4.38 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 73693 |
| Provisional designation | 1991 RQ3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.59 km (#9,579 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.118 |
| Absolute magnitude (H) | 14.32 |
| Orbital period | 5.43 years |
| Semi-major axis | 3.09 au |
| Perihelion – aphelion | 2.59 – 3.58 au |
| Eccentricity | 0.161 |
| Inclination | 11.6° |
| Closest distance between its orbit and Earth's (MOID) | 1.63 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Johann
- (1651) Behrens
- (5195) Kaendler
- (6734) Benzenberg
- (7449) Dollen
- (8158) Herder
- (8203) Jogolehmann
- (8368) Lamont
- (8583) Froberger
- (9052) Uhland
- (9134) Encke
- (10749) Musaus
- (11673) Baur
All asteroids named after someone called Johann
Also discovered on 12 September 1991
- (6864) Starkenburg
- (9187) Walterkroll
- (9344) Klopstock
- (10782) Hittmair
- (21074) Rugen
- (21075) Heussinger
- (21076) Kokoschka
- (23490) Monikohl
- (24712) Boltzmann
- (24713) Ekrutt
- (27758) Michelson
- (46563) Oken