(31453) Arnaudthiry Main-belt Asteroid
Discovered on 14 February 1999 by ODAS at Caussols.
Arnaud Thiry (b. 1988) is a French photographer and science popularizer, mainly known for his Astronogeek youtube channel. His channel features videos debunking false science and UFO-related stories.Naming citation (MPC batch dated 2019-08-27), IAU / Minor Planet Center, via NASA/JPL
Where Arnaudthiry is today
Seen from above the solar system on 2026-10-14: Arnaudthiry is 3.25 au from the Sun and 3.52 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 31453 |
| Provisional designation | 1999 CY12 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.07 km (#12,575 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.294 |
| Absolute magnitude (H) | 14.16 |
| Orbital period | 4.71 years |
| Semi-major axis | 2.81 au |
| Perihelion – aphelion | 2.32 – 3.29 au |
| Eccentricity | 0.173 |
| Inclination | 8.81° |
| Closest distance between its orbit and Earth's (MOID) | 1.32 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Arnaud
All asteroids named after someone called Arnaud
Also discovered on 14 February 1999
- (20433) Prestinenza
- (27217) Mattieharrington
- (28331) Dianeberard
- (31450) Stevepreston
- (42795) Derekmuller
- (49500) Ishitoshi
- (59248) Genevievesoucail