(20141) Markidger Main-belt Asteroid
Discovered on 13 September 1996 by M. Blasco at Costitx.
Mark Richard Kidger (b. 1960) is a British-born astrophysicist of the Instituto de Astrofisica de Canarias, known for his contribution to Spanish astronomy with his dedication to the study of the nature of comets, meteors and minor planets, and for the support and friendship that connect him with the Observatorio de Mallorca.Naming citation (20020328/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Markidger is today
Seen from above the solar system on 2026-10-14: Markidger is 2.25 au from the Sun and 2.55 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20141 |
| Provisional designation | 1996 RL5 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.38 km (#14,277 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.224 |
| Rotation period | 5.43 hours |
| Absolute magnitude (H) | 14.87 |
| Orbital period | 3.39 years |
| Semi-major axis | 2.26 au |
| Perihelion – aphelion | 1.85 – 2.66 au |
| Eccentricity | 0.180 |
| Inclination | 7.12° |
| Closest distance between its orbit and Earth's (MOID) | 0.862 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Mark
- (7004) Markthiemens
- (7552) Sephton
- (7778) Markrobinson
- (7917) Hammergren
- (8015) Marksimons
- (8329) Speckman
- (8686) Akenside
- (8789) Effertz
- (10276) Matney
- (10598) Markrees
- (12094) Mazumder
- (13211) Stucky
All asteroids named after someone called Mark