(317715) Guydetienne Main-belt Asteroid
Discovered on 24 August 2003 by Saint-Sulpice at Saint-Sulpice.
Guy Detienne (b. 1950) is a Belgian amateur astronomer. He co-developed, with the discoverer, a way of timing telescopic images with great precision using a GPS clock.Naming citation (MPC batch dated 2014-04-15), IAU / Minor Planet Center, via NASA/JPL
Where Guydetienne is today
Seen from above the solar system on 2026-10-14: Guydetienne is 3.03 au from the Sun and 3.96 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 317715 |
| Provisional designation | 2003 QJ31 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.14 |
| Orbital period | 4.89 years |
| Semi-major axis | 2.88 au |
| Perihelion – aphelion | 2.57 – 3.19 au |
| Eccentricity | 0.108 |
| Inclination | 9.31° |
| Closest distance between its orbit and Earth's (MOID) | 1.57 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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All asteroids named after someone called Guy
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