(52308) Hanspeterroser Main-belt Asteroid
Discovered on 7 October 1991 by Schmadel, L. D., Borngen, F. at Tautenburg.
Hans-Peter Röser (b. 1949), director of the Institute of Space Studies at the University of Stuttgart, participated significantly in the observation campaign of the Kuiper Airborne Observatory and has been one of the key initiators of the subsequent US-German Stratospheric Observatory for Infrared Astronomy.Naming citation (MPC batch dated 2014-09-09), IAU / Minor Planet Center, via NASA/JPL
Where Hanspeterroser is today
Seen from above the solar system on 2026-10-14: Hanspeterroser is 3.45 au from the Sun and 4.15 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 52308 |
| Provisional designation | 1991 TE3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.01 km (#8,914 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.102 |
| Absolute magnitude (H) | 14.62 |
| Orbital period | 5.32 years |
| Semi-major axis | 3.05 au |
| Perihelion – aphelion | 2.57 – 3.52 au |
| Eccentricity | 0.156 |
| Inclination | 3.83° |
| Closest distance between its orbit and Earth's (MOID) | 1.59 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Peter
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- (8086) Peterthomas
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- (8280) Petergruber
- (8395) Rembaut
- (9207) Petersmith
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All asteroids named after someone called Peter
Also discovered on 7 October 1991
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- (52309) Philnicolai
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