(20007) Marybrown Main-belt Asteroid
Discovered on 7 June 1991 by Shoemaker, C. S., Shoemaker, E. M. at Palomar.
Mary J. Brown (b. 1945) assisted in organizing the Palomar Observatory's 1.2-m Schmidt Oschin Telescope plate archive at the California Institute of Technology. This eight-month project was accomplished in 2002 by a dedicated group of eleven volunteers, of which Mary was a valuable member.Naming citation (20030318/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Marybrown is today
Seen from above the solar system on 2026-10-14: Marybrown is 2.93 au from the Sun and 3.42 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20007 |
| Provisional designation | 1991 LR |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.14 km (#7,475 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0700 |
| Absolute magnitude (H) | 14.46 |
| Orbital period | 3.68 years |
| Semi-major axis | 2.38 au |
| Perihelion – aphelion | 1.83 – 2.93 au |
| Eccentricity | 0.231 |
| Inclination | 14.9° |
| Closest distance between its orbit and Earth's (MOID) | 0.819 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Mary
- (4793) Slessor
- (5595) Roth
- (6603) Marycragg
- (7091) Maryfields
- (7958) Leakey
- (9824) Marylea
- (10870) Gwendolen
- (11369) Brazelton
- (12590) Ballantine
- (12627) Maryedwards
- (12628) Acworthorr
- (13412) Guerrieri
All asteroids named after someone called Mary