(21729) Kimrichards Main-belt Asteroid
Discovered on 9 September 1999 by LINEAR at Socorro.
Kimberly Skye Richards (b. 1989) was awarded second place in the 2005 Intel International Science and Engineering Fair for her botany project. She attends the Walter Murray Collegiate, Saskatoon, Saskatchewan, Canada.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Kimrichards is today
Seen from above the solar system on 2026-10-14: Kimrichards is 2.39 au from the Sun and 3.20 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21729 |
| Provisional designation | 1999 RE137 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.41 km (#16,437 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.366 |
| Absolute magnitude (H) | 15.16 |
| Orbital period | 3.61 years |
| Semi-major axis | 2.35 au |
| Perihelion – aphelion | 2.30 – 2.41 au |
| Eccentricity | 0.0248 |
| Inclination | 5.38° |
| Closest distance between its orbit and Earth's (MOID) | 1.28 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Kimberly
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- (15629) Sriner
- (18092) Reinhold
- (19811) Kimperkins
- (22547) Kimberscott
- (28053) Kimberlyputnam
- (154587) Ennico
- (172505) Kimberlyespy
All asteroids named after someone called Kimberly
Also discovered on 9 September 1999
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- (12592) Brianchen
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- (12595) Amandashaw
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- (12597) Williamdaniel
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