(21552) Richardlee Main-belt Asteroid
Discovered on 17 August 1998 by LINEAR at Socorro.
Richard C. Lee (b. 1991) was awarded first place in the 2006 Intel International Science and Engineering Fair for his environmental sciences team project. He attends the Cookeville High School, Cookeville, Tennessee, U.S.A.Naming citation (20060711/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Richardlee is today
Seen from above the solar system on 2026-10-14: Richardlee is 2.59 au from the Sun and 3.31 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21552 |
| Provisional designation | 1998 QC52 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.61 km (#9,558 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.223 |
| Rotation period | 127 hours |
| Absolute magnitude (H) | 13.4 |
| Orbital period | 4.18 years |
| Semi-major axis | 2.60 au |
| Perihelion – aphelion | 2.57 – 2.62 au |
| Eccentricity | 0.00935 |
| Inclination | 22.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.58 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Richard
- (4143) Huziak
- (4252) Godwin
- (5391) Emmons
- (5567) Durisen
- (6368) Richardmenendez
- (6893) Sanderson
- (7392) Kowalski
- (7845) Mckim
- (7966) Richardbaum
- (8331) Dawkins
- (8717) Richviktorov
- (9725) Wainscoat
All asteroids named after someone called Richard
Also discovered on 17 August 1998
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- (9476) Vincenthuang
- (9477) Kefennell
- (10635) Chiragkumar
- (11189) Rabeaton
- (11369) Brazelton
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- (11371) Camley
- (11372) Aditisingh
- (11373) Carbonaro
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- (12545) Taniamurphy