(345971) Marktorrence Main-belt Asteroid
Discovered on 14 October 2007 by D. R. Skillman at Front Royal.
Mark H. Torrence (b. 1952) is a planetary scientist and a contributor to the data analysis of the MLA laser altimeter on the MESSENGER Mercury mission and the LOLA altimeter at the Moon. He has published on the lunar crater Shackleton, and the topography and the internal structure of Mercury.Naming citation (MPC batch dated 2013-04-25), IAU / Minor Planet Center, via NASA/JPL
Where Marktorrence is today
Seen from above the solar system on 2026-10-14: Marktorrence is 2.86 au from the Sun and 2.36 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 345971 |
| Provisional designation | 2007 TG105 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.95 |
| Orbital period | 4.61 years |
| Semi-major axis | 2.77 au |
| Perihelion – aphelion | 2.59 – 2.96 au |
| Eccentricity | 0.0668 |
| Inclination | 3.69° |
| Closest distance between its orbit and Earth's (MOID) | 1.57 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 14 October 2007
- (173094) Wielicki
- (333620) Scottfrancis
- (341359) Gregneumann
- (341520) Mors-Somnus
- (345972) Rufin
- (400309) Ralfhofner
- (417955) Mallama