(20741) Jeanmichelreess Main-belt Asteroid
Discovered on 7 December 1999 by LONEOS at Anderson Mesa.
Jean-Michel Reess (b. 1967) is an engineer at Paris Observatory. He is developing the optics of new-generation instruments for space missions.Naming citation (20080718/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Jeanmichelreess is today
Seen from above the solar system on 2026-10-14: Jeanmichelreess is 4.01 au from the Sun and 3.57 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20741 |
| Provisional designation | 1999 XA230 |
| Orbit class | Main-belt Asteroid |
| Diameter | 14.2 km (#3,337 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0420 |
| Rotation period | 49.7 hours |
| Absolute magnitude (H) | 13.27 |
| Orbital period | 5.64 years |
| Semi-major axis | 3.17 au |
| Perihelion – aphelion | 2.33 – 4.01 au |
| Eccentricity | 0.266 |
| Inclination | 12.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.34 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Michel
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- (49108) Gouttesolard
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- (63787) Michelmaurette
All asteroids named after someone called Michel
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