(9381) Lyon Main-belt Asteroid
Discovered on 15 September 1993 by Debehogne, H., Elst, E. W. at La Silla.
Named for the French city Lyon, capital of the Rhône departement in east-central France, at the confluence of the Rhône and Saône rivers. Originally a Roman military colony (Lugdunum), it subsequently became the capital for the Gauls. As early as 1473 Lyon was the most active printing center in Europe.Naming citation (19990402/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Lyon is today
Seen from above the solar system on 2026-10-14: Lyon is 2.86 au from the Sun and 3.45 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9381 |
| Provisional designation | 1993 RT19 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.16 km (#7,450 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.198 |
| Absolute magnitude (H) | 12.93 |
| Orbital period | 5.20 years |
| Semi-major axis | 3.00 au |
| Perihelion – aphelion | 2.81 – 3.19 au |
| Eccentricity | 0.0633 |
| Inclination | 1.13° |
| Closest distance between its orbit and Earth's (MOID) | 1.83 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 15 September 1993
- (8039) Grandprism
- (10356) Rudolfsteiner
- (10557) Rowland
- (10558) Karlstad
- (11083) Caracas
- (11572) Schindler
- (12356) Carlscheele
- (13113) Williamyeats
- (14911) Fukamatsu
- (15786) Hoshioka
- (17544) Kojiroishikawa
- (19224) Orosei