(11147) Delmas Main-belt Asteroid
Discovered on 6 December 1997 by P. Antonini at Bedoin.
Robert Delmas (b. 1955) is a French aeronautical engineer. Deeply interested in astronomy, he has devoted much time to AUDE, the Association des Utilisateurs de Détecteurs Électroniques.Naming citation (WGSBN Bull. 4, #12, 4), IAU / Minor Planet Center, via NASA/JPL
Where Delmas is today
Seen from above the solar system on 2026-10-14: Delmas is 3.47 au from the Sun and 4.16 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 11147 |
| Provisional designation | 1997 XT5 |
| Orbit class | Main-belt Asteroid |
| Diameter | 14.4 km (#3,291 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0850 |
| Absolute magnitude (H) | 12.96 |
| Orbital period | 5.53 years |
| Semi-major axis | 3.13 au |
| Perihelion – aphelion | 2.67 – 3.58 au |
| Eccentricity | 0.146 |
| Inclination | 7.40° |
| Closest distance between its orbit and Earth's (MOID) | 1.68 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Robert
- (1955) McMath
- (3514) Hooke
- (3875) Staehle
- (4564) Clayton
- (4809) Robertball
- (5109) Robertmiller
- (5308) Hutchison
- (5477) Holmes
- (5585) Parks
- (5636) Jacobson
- (5739) Robertburns
- (5817) Robertfrazer
All asteroids named after someone called Robert