(23472) Rolfriekher Main-belt Asteroid
Discovered on 10 October 1990 by Schmadel, L. D., Borngen, F. at Tautenburg.
Rolf Riekher (b. 1922) is a German optician who specialized in the history of optics and astronomy and related instruments. He discussed telescopes from ancient times to the present in Fernrohre und ihre Meister. He has also studied Fraunhofer's life and Kepler's work on optics. The name was suggested by the first discoverer.Naming citation (20070106/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Rolfriekher is today
Seen from above the solar system on 2026-10-14: Rolfriekher is 2.95 au from the Sun and 3.95 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 23472 |
| Provisional designation | 1990 TZ10 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.13 km (#12,441 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.164 |
| Absolute magnitude (H) | 14.45 |
| Orbital period | 4.21 years |
| Semi-major axis | 2.61 au |
| Perihelion – aphelion | 2.19 – 3.02 au |
| Eccentricity | 0.159 |
| Inclination | 14.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.21 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Rolf
All asteroids named after someone called Rolf
Also discovered on 10 October 1990
- (5236) Yoko
- (6068) Brandenburg
- (6717) Antal
- (8500) Hori
- (11886) Kraske
- (15727) Ianmorison
- (17460) Mang
- (18360) Sachs
- (19159) Taenakano
- (19162) Wambsganss
- (19992) Schonbein
- (19993) Gunterseeber