(21711) Wilfredwong Main-belt Asteroid
Discovered on 7 September 1999 by LINEAR at Socorro.
Wilfred Chung-Him Wong (b. 1988) was awarded second place in the 2006 Intel International Science and Engineering Fair for his engineering team project. He attends the Herricks Senior High School, New Hyde Park, New York, U.S.A.Naming citation (20060711/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Wilfredwong is today
Seen from above the solar system on 2026-10-14: Wilfredwong is 2.84 au from the Sun and 1.96 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21711 |
| Provisional designation | 1999 RE95 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.00 km (#12,727 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.145 |
| Absolute magnitude (H) | 14.42 |
| Orbital period | 3.88 years |
| Semi-major axis | 2.47 au |
| Perihelion – aphelion | 2.05 – 2.89 au |
| Eccentricity | 0.171 |
| Inclination | 11.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.05 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Wilfred
All asteroids named after someone called Wilfred
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