(341958) Chretien Main-belt Asteroid
Discovered on 3 August 2008 by P. Sogorb at Eygalayes.
Henri Chrétien (1879-1956) was a French astronomer and optician. An optical-calculation expert, he was the co-inventor of Ritchey-Chrétien telescope. This kind of telescope is now used throughout the world and even in space.Naming citation (MPC batch dated 2016-05-21), IAU / Minor Planet Center, via NASA/JPL
Where Chretien is today
Seen from above the solar system on 2026-10-14: Chretien is 2.21 au from the Sun and 3.08 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 341958 |
| Provisional designation | 2008 PW21 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 17.27 |
| Orbital period | 3.77 years |
| Semi-major axis | 2.42 au |
| Perihelion – aphelion | 1.96 – 2.88 au |
| Eccentricity | 0.190 |
| Inclination | 4.13° |
| Closest distance between its orbit and Earth's (MOID) | 0.944 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Henri
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- (8521) Boulainvilliers
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- (11506) Toulouse-Lautrec
- (11763) Deslandres
- (12261) Ledouanier
- (12702) Panamarenko
- (12708) Van Straten
- (20358) Dalem
All asteroids named after someone called Henri