(128633) Queyras Outer Main-belt Asteroid
Discovered on 8 September 2004 by St. Veran at St. Veran.
Queyras is a valley of the French Alps and also a regional national park. This place is famous for astronomical observations because of its exceptional weather and its very dark skies.Naming citation (20100923/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Queyras is today
Seen from above the solar system on 2026-10-14: Queyras is 3.64 au from the Sun and 4.59 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 128633 |
| Provisional designation | 2004 RF12 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 7.95 km (#6,637 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0530 |
| Absolute magnitude (H) | 14.61 |
| Orbital period | 6.35 years |
| Semi-major axis | 3.43 au |
| Perihelion – aphelion | 3.22 – 3.64 au |
| Eccentricity | 0.0599 |
| Inclination | 6.48° |
| Closest distance between its orbit and Earth's (MOID) | 2.22 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.