(28248) Barthelemy Main-belt Asteroid
Discovered on 19 January 1999 by ODAS at Caussols.
Pierre Barthélémy (b. 1967) is a French scientific journalist working mainly for Le Monde, where he is responsible for the science blog, as well as covering chess. He lives in Cognac in the west of France.Naming citation (WGSBN Bull. 3, #12, 12), IAU / Minor Planet Center, via NASA/JPL
Where Barthelemy is today
Seen from above the solar system on 2026-10-14: Barthelemy is 2.07 au from the Sun and 1.34 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 28248 |
| Provisional designation | 1999 BQ4 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 14.23 |
| Orbital period | 4.19 years |
| Semi-major axis | 2.60 au |
| Perihelion – aphelion | 2.05 – 3.15 au |
| Eccentricity | 0.211 |
| Inclination | 2.49° |
| Closest distance between its orbit and Earth's (MOID) | 1.05 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Pierre
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- (11946) Bayle
- (12007) Fermat
- (12042) Laques
- (12324) Van Rompaey
- (12580) Antonini
All asteroids named after someone called Pierre