(10281) Libourel Main-belt Asteroid
Discovered on 11 March 1981 by S. J. Bus at Siding Spring.
Guy Libourel (b. 1956) is a cosmochemist at Observatoire de la Côte d´Azur (France) whose research includes the petrology and formation of chondrules.Naming citation (MPC batch dated 2017-03-12), IAU / Minor Planet Center, via NASA/JPL
Where Libourel is today
Seen from above the solar system on 2026-10-14: Libourel is 2.65 au from the Sun and 3.59 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10281 |
| Provisional designation | 1981 EE45 |
| Orbit class | Main-belt Asteroid |
| Diameter | 12.2 km (#3,987 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0510 |
| Rotation period | 7.57 hours |
| Absolute magnitude (H) | 13.64 |
| Orbital period | 4.51 years |
| Semi-major axis | 2.73 au |
| Perihelion – aphelion | 2.63 – 2.83 au |
| Eccentricity | 0.0371 |
| Inclination | 10.5° |
| Closest distance between its orbit and Earth's (MOID) | 1.64 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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