(10703) Saint-Jacques Main-belt Asteroid
Discovered on 23 August 1981 by H. Debehogne at La Silla.
David Saint-Jacques (b. 1970) is a Canadian physician and astronaut who studied at École Polytechnique de Montréal, Cambridge University and Laval University. He worked as a medical doctor in the Arctic, helped develop adaptive optics and interferometry systems, and is a qualified pilot and scuba diver. Saint-Jacques was part of Expedition 58/59 on the ISS.Naming citation (WGSBN Bull. 2, #15, 9), IAU / Minor Planet Center, via NASA/JPL
Where Saint-Jacques is today
Seen from above the solar system on 2026-10-14: Saint-Jacques is 2.35 au from the Sun and 1.44 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10703 |
| Provisional designation | 1981 QU3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.69 km (#13,498 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.226 |
| Rotation period | 10.9 hours |
| Absolute magnitude (H) | 14.43 |
| Orbital period | 3.71 years |
| Semi-major axis | 2.39 au |
| Perihelion – aphelion | 1.97 – 2.82 au |
| Eccentricity | 0.179 |
| Inclination | 10.3° |
| Closest distance between its orbit and Earth's (MOID) | 0.956 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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All asteroids named after someone called David