(6642) Henze Main-belt Asteroid
Discovered on 26 October 1990 by T. Urata at Oohira.
Martin Henze (b. 1981), an astronomer at the Max-Planck-Institut für extraterrestrische Physik, has discovered many optical novae in M31 on archival photographic plates at the Tautenburg Observatory. He also works on the discovery and analysis of optical and x-ray transients in nearby galaxies.Naming citation (20081113/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Henze is today
Seen from above the solar system on 2026-10-14: Henze is 3.67 au from the Sun and 4.57 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 6642 |
| Provisional designation | 1990 UE3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 14.9 km (#3,161 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.126 |
| Rotation period | 4.47 hours |
| Absolute magnitude (H) | 12.5 |
| Orbital period | 5.63 years |
| Semi-major axis | 3.16 au |
| Perihelion – aphelion | 2.38 – 3.94 au |
| Eccentricity | 0.246 |
| Inclination | 4.32° |
| Closest distance between its orbit and Earth's (MOID) | 1.40 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Martin
- (2305) King
- (6385) Martindavid
- (7100) Martin Luther
- (7239) Mobberley
- (7398) Walsh
- (7547) Martinnakata
- (7846) Setvak
- (8074) Slade
- (8152) Martinlee
- (9143) Burkhead
- (9283) Martinelvis
- (9521) Martinhoffmann
All asteroids named after someone called Martin