(39536) Lenhof Main-belt Asteroid
Discovered on 10 October 1990 by Schmadel, L. D., Borngen, F. at Tautenburg.
Helmut Lenhof (b. 1924) is a retired professor of physics. He was one of the founders of the Carinthian Astronomical Association in Klagenfurt, Austria, and dedicated much of his time to astronomy. He still contributes a monthly column for their journal. Name proposed by the first discoverer.Naming citation (20120703/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Lenhof is today
Seen from above the solar system on 2026-10-14: Lenhof is 1.93 au from the Sun and 2.77 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 39536 |
| Provisional designation | 1990 TA11 |
| Orbit class | Main-belt Asteroid |
| Diameter | 1.71 km (#17,269 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.380 |
| Absolute magnitude (H) | 15.81 |
| Orbital period | 3.37 years |
| Semi-major axis | 2.25 au |
| Perihelion – aphelion | 1.87 – 2.63 au |
| Eccentricity | 0.169 |
| Inclination | 5.66° |
| Closest distance between its orbit and Earth's (MOID) | 0.854 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Helmut
All asteroids named after someone called Helmut
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