(21676) Maureenanne Main-belt Asteroid
Discovered on 7 September 1999 by LINEAR at Socorro.
Maureen Anne Williams (b. 1989) was awarded second place in the 2006 Intel International Science and Engineering Fair for her environmental sciences team project. She attends the Bishop Moore Catholic High School, Orlando, Florida, U.S.A.Naming citation (20060711/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Maureenanne is today
Seen from above the solar system on 2026-10-14: Maureenanne is 2.93 au from the Sun and 3.37 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21676 |
| Provisional designation | 1999 RB23 |
| Orbit class | Main-belt Asteroid |
| Diameter | 10.9 km (#4,643 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0540 |
| Absolute magnitude (H) | 13.76 |
| Orbital period | 5.13 years |
| Semi-major axis | 2.98 au |
| Perihelion – aphelion | 2.50 – 3.45 au |
| Eccentricity | 0.160 |
| Inclination | 11.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.51 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Maureen
All asteroids named after someone called Maureen
Also discovered on 7 September 1999
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- (12577) Samra
- (12578) Bensaur
- (12585) Katschwarz
- (12586) Juliaspeyer
- (12588) Arseneau
- (12604) Lisatate
- (12924) Madisonicole
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