(25538) Markcarlson Main-belt Asteroid
Discovered on 8 December 1999 by LINEAR at Socorro.
Mark Carlson mentored a finalist in the 2009 Intel Science Talent Search (STS), a science competition for high school seniors. He teaches at the Illinois Mathematics & Science Academy, Aurora, Illinois.Naming citation (20090311/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Markcarlson is today
Seen from above the solar system on 2026-10-14: Markcarlson is 2.24 au from the Sun and 3.18 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 25538 |
| Provisional designation | 1999 XN158 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.63 km (#13,627 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.280 |
| Absolute magnitude (H) | 14.65 |
| Orbital period | 4.17 years |
| Semi-major axis | 2.59 au |
| Perihelion – aphelion | 2.17 – 3.01 au |
| Eccentricity | 0.162 |
| Inclination | 5.48° |
| Closest distance between its orbit and Earth's (MOID) | 1.16 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
Also discovered on 8 December 1999
- (13862) Elais
- (14683) Remy
- (15526) Kokura
- (18060) Zarex
- (23096) Mihika
- (23098) Huanghuang
- (24194) Palus
- (24268) Charconley
- (24269) Kittappa
- (24270) Dougskinner
- (25539) Roberthelm
- (25541) Greathouse