(12591) Bergey Main-belt Asteroid
Discovered on 9 September 1999 by LINEAR at Socorro.
Rachel Hope Bergey (b. 2005) was a finalist in the 2019 Broadcom MASTERS, a math and science competition for middle-school students, for her animal science project. She is homeschooled in Harleysville, Pennsylvania.Naming citation (WGSBN Bull. 3, #1, 7), IAU / Minor Planet Center, via NASA/JPL
Where Bergey is today
Seen from above the solar system on 2026-10-14: Bergey is 2.67 au from the Sun and 3.14 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12591 |
| Provisional designation | 1999 RT133 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.90 km (#12,987 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.319 |
| Rotation period | 18.4 hours |
| Absolute magnitude (H) | 14.08 |
| Orbital period | 3.65 years |
| Semi-major axis | 2.37 au |
| Perihelion – aphelion | 2.07 – 2.67 au |
| Eccentricity | 0.125 |
| Inclination | 5.33° |
| Closest distance between its orbit and Earth's (MOID) | 1.07 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Rachel
- (4994) Kisala
- (8995) Rachelstevenson
- (9287) Klima
- (11367) Rachelseevers
- (11719) Hicklen
- (16223) Racheljoseph
- (17698) Racheldavis
- (17801) Zelkowitz
- (19568) Rachelmarie
- (25191) Rachelouise
- (25912) Recawkwell
- (28591) Racheldilger
All asteroids named after someone called Rachel
Also discovered on 9 September 1999
- (12127) Mamiya
- (12130) Mousa
- (12589) Davidanand
- (12590) Ballantine
- (12592) Brianchen
- (12593) Shashlov
- (12594) Sidorclare
- (12595) Amandashaw
- (12596) Shukla
- (12597) Williamdaniel
- (12598) Sierra
- (12599) Singhal