(27291) Greghansen Main-belt Asteroid
Discovered on 5 January 2000 by LINEAR at Socorro.
Gregory A. Hansen mentored a finalist in the 2011 Intel Science Talent Search, a science competition for high-school seniors. He teaches at the Lawrenceville School, Lawrenceville, New Jersey, U.S.A.Naming citation (20110319/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Greghansen is today
Seen from above the solar system on 2026-10-14: Greghansen is 2.25 au from the Sun and 3.07 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 27291 |
| Provisional designation | 2000 AV129 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.00 km (#17,035 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.335 |
| Absolute magnitude (H) | 15.62 |
| Orbital period | 3.31 years |
| Semi-major axis | 2.22 au |
| Perihelion – aphelion | 1.86 – 2.57 au |
| Eccentricity | 0.160 |
| Inclination | 4.88° |
| Closest distance between its orbit and Earth's (MOID) | 0.849 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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- (30365) Gregduran
- (53435) Leonard
- (85878) Guzik
- (154378) Hennessy
All asteroids named after someone called Gregory
Also discovered on 5 January 2000
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- (14262) Kratzer
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