(21778) Andrewarren Main-belt Asteroid
Discovered on 7 September 1999 by LINEAR at Socorro.
Andrew David Warren (b. 1989) was awarded second place in the 2005 Intel International Science and Engineering Fair for his microbiology project. He attends the Lake Highland Preparatory School, Orlando, Florida, U.S.A.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Andrewarren is today
Seen from above the solar system on 2026-10-14: Andrewarren is 2.28 au from the Sun and 1.91 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21778 |
| Provisional designation | 1999 RF225 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.0 |
| Orbital period | 3.75 years |
| Semi-major axis | 2.41 au |
| Perihelion – aphelion | 2.11 – 2.72 au |
| Eccentricity | 0.127 |
| Inclination | 1.46° |
| Closest distance between its orbit and Earth's (MOID) | 1.12 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Andrew
- (5280) Andrewbecker
- (5441) Andymurray
- (6814) Steffl
- (6825) Irvine
- (6947) Andrewdavis
- (7150) McKellar
- (8257) Andycheng
- (8867) Tubbiolo
- (9999) Wiles
- (10230) Andrewnorton
- (11450) Shearer
- (12506) Pariser
All asteroids named after someone called Andrew
Also discovered on 7 September 1999
- (12126) Chersidamas
- (12577) Samra
- (12578) Bensaur
- (12585) Katschwarz
- (12586) Juliaspeyer
- (12588) Arseneau
- (12604) Lisatate
- (12924) Madisonicole
- (13818) Ullery
- (14214) Hirsch
- (15503) Estradioto
- (16067) Brandonfan