(31939) Thananon Main-belt Asteroid
Discovered on 7 April 2000 by LINEAR at Socorro.
Thananon Hiranwanichchakorn (b. 1998) was awarded best of category award and first place in the 2015 Intel ISEF for his animal sciences team project. He also received the European Union Contest for Young Scientists Award. He attends the Damrongratsongkroh School, Muang, Thailand.Naming citation (MPC batch dated 2015-11-25), IAU / Minor Planet Center, via NASA/JPL
Where Thananon is today
Seen from above the solar system on 2026-10-14: Thananon is 2.59 au from the Sun and 2.02 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 31939 |
| Provisional designation | 2000 GC101 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.21 km (#14,686 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.272 |
| Rotation period | 20.0 hours |
| Absolute magnitude (H) | 14.81 |
| Orbital period | 3.51 years |
| Semi-major axis | 2.31 au |
| Perihelion – aphelion | 1.86 – 2.76 au |
| Eccentricity | 0.196 |
| Inclination | 4.24° |
| Closest distance between its orbit and Earth's (MOID) | 0.843 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 7 April 2000
- (15599) Richardlarson
- (15603) Kimyoonji
- (15604) Fruits
- (15608) Owens
- (15609) Kosmaczewski
- (15611) Leejoonyoung
- (15612) Parkmincheol
- (15614) Pillinger
- (16238) Chappe
- (16239) Dower
- (16241) Dvorsky
- (16242) Licato