(21647) Carlturner Main-belt Asteroid
Discovered on 12 July 1999 by LINEAR at Socorro.
Carl Anthony Turner (b. 1989) was awarded first place in the 2006 Intel International Science and Engineering Fair for his engineering project. He attends the New Prague Senior High School, New Prague, Minnesota, U.S.A.Naming citation (20060711/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Carlturner is today
Seen from above the solar system on 2026-10-14: Carlturner is 2.63 au from the Sun and 2.01 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21647 |
| Provisional designation | 1999 NE54 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.58 km (#6,091 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0420 |
| Absolute magnitude (H) | 14.61 |
| Orbital period | 4.34 years |
| Semi-major axis | 2.66 au |
| Perihelion – aphelion | 2.45 – 2.88 au |
| Eccentricity | 0.0806 |
| Inclination | 10.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.45 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Carl
- (2044) Wirt
- (3360) Syrinx
- (5493) Spitzweg
- (6058) Carlnielsen
- (6175) Cori
- (7414) Bosch
- (7911) Carlpilcher
- (7973) Koppeschaar
- (8058) Zuckmayer
- (8268) Goerdeler
- (8677) Charlier
- (9180) Samsagan
All asteroids named after someone called Carl
Also discovered on 12 July 1999
- (12571) Occhiogrosso
- (20485) Leaferellec
- (20486) Lemos
- (21625) Seira
- (21626) Matthewhall
- (21646) Joshuaturner
- (21648) Gravanschaik