(21508) Benbrewer Main-belt Asteroid
Discovered on 22 May 1998 by LINEAR at Socorro.
Benjamin Wayne Brewer (b. 1986) was awarded second place in the 2005 Intel International Science and Engineering Fair for his microbiology project. He attends the Eastern High School, Pekin, Indiana, U.S.A.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Benbrewer is today
Seen from above the solar system on 2026-10-14: Benbrewer is 2.26 au from the Sun and 1.57 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21508 |
| Provisional designation | 1998 KU33 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.84 km (#13,134 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.208 |
| Absolute magnitude (H) | 14.42 |
| Orbital period | 4.55 years |
| Semi-major axis | 2.75 au |
| Perihelion – aphelion | 2.26 – 3.23 au |
| Eccentricity | 0.178 |
| Inclination | 1.81° |
| Closest distance between its orbit and Earth's (MOID) | 1.25 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Benjamin
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- (7808) Bagould
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- (11764) Benbaillaud
- (12578) Bensaur
- (15565) Benjaminsteele
- (15604) Fruits
- (17793) Delorio
- (17910) Munyan
All asteroids named after someone called Benjamin
Also discovered on 22 May 1998
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- (11735) Isabellecohen
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- (12106) Menghuan
- (12107) Reneebarcia
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- (12861) Wacker