(9931) Herbhauptman Main-belt Asteroid
Discovered on 18 April 1985 by A. Mrkos at Klet.
Renowned mathematician Herbert A. Hauptman (b. 1917), since 1986 president of the Hauptman-Woodward Medical Research Institute in Buffalo, New York, shared the 1985 Nobel prize in chemistry for his development of a mathematical model to determine the crystal structure of complex molecules from x-ray diffraction.Naming citation (20040928/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Herbhauptman is today
Seen from above the solar system on 2026-10-14: Herbhauptman is 2.44 au from the Sun and 1.70 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9931 |
| Provisional designation | 1985 HH |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.18 km (#10,292 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.239 |
| Rotation period | 4.44 hours |
| Absolute magnitude (H) | 13.87 |
| Orbital period | 3.67 years |
| Semi-major axis | 2.38 au |
| Perihelion – aphelion | 1.96 – 2.80 au |
| Eccentricity | 0.178 |
| Inclination | 2.47° |
| Closest distance between its orbit and Earth's (MOID) | 0.946 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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