(21747) Justsolomon Main-belt Asteroid
Discovered on 9 September 1999 by LINEAR at Socorro.
Justin Moore Solomon (b. 1987) was awarded first place in the 2005 Intel International Science and Engineering Fair for his computer science project. He attends the Thomas Jefferson High School for Science and Technology, Alexandria, Virginia, U.S.A.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Justsolomon is today
Seen from above the solar system on 2026-10-14: Justsolomon is 2.55 au from the Sun and 1.59 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21747 |
| Provisional designation | 1999 RD170 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.89 km (#9,087 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0810 |
| Absolute magnitude (H) | 14.85 |
| Orbital period | 4.48 years |
| Semi-major axis | 2.72 au |
| Perihelion – aphelion | 2.20 – 3.23 au |
| Eccentricity | 0.190 |
| Inclination | 2.25° |
| Closest distance between its orbit and Earth's (MOID) | 1.22 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Justin
- (11231) Schiavo
- (12571) Occhiogrosso
- (13585) Justinsmith
- (16177) Pelzer
- (19593) Justinkoh
- (21394) Justinbecker
- (21401) Justinkovac
- (25531) Lessek
- (26666) Justinto
- (27382) Justinbarber
- (31513) Lafazan
- (34278) Justinxie
All asteroids named after someone called Justin
Also discovered on 9 September 1999
- (12127) Mamiya
- (12130) Mousa
- (12589) Davidanand
- (12590) Ballantine
- (12591) Bergey
- (12592) Brianchen
- (12593) Shashlov
- (12594) Sidorclare
- (12595) Amandashaw
- (12596) Shukla
- (12597) Williamdaniel
- (12598) Sierra