(31507) Williamjin Main-belt Asteroid
Discovered on 12 February 1999 by LINEAR at Socorro.
William Huang Jin (b. 1995) was awarded second place in the 2014 Intel International Science and Engineering Fair for his microbiology project. He attends the Gwinnett School of Mathematics, Science, and Technology, Lawrenceville, Georgia, U.S.A.Naming citation (MPC batch dated 2015-07-02), IAU / Minor Planet Center, via NASA/JPL
Where Williamjin is today
Seen from above the solar system on 2026-10-14: Williamjin is 2.11 au from the Sun and 3.06 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 31507 |
| Provisional designation | 1999 CX81 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.59 km (#11,446 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0530 |
| Absolute magnitude (H) | 15.18 |
| Orbital period | 3.44 years |
| Semi-major axis | 2.28 au |
| Perihelion – aphelion | 2.05 – 2.50 au |
| Eccentricity | 0.1000 |
| Inclination | 5.06° |
| Closest distance between its orbit and Earth's (MOID) | 1.06 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called William
- (1853) McElroy
- (2220) Hicks
- (3445) Pinson
- (3894) Williamcooke
- (4137) Crabtree
- (4423) Golden
- (4838) Billmclaughlin
- (5345) Boynton
- (5763) Williamtobin
- (6012) Williammurdoch
- (6613) Williamcarl
- (6756) Williamfeldman
All asteroids named after someone called William
Also discovered on 12 February 1999
- (10941) Mamidala
- (16017) Street
- (16019) Edwardsu
- (16020) Tevelde
- (16021) Caseyvaughn
- (17004) Sinkevich
- (17008) Anamariaperez
- (17009) Jasonping
- (17015) Shriyareddy
- (17883) Scobuchanan
- (17884) Jeffthompson
- (17885) Brianbeyt