(21742) Rachaelscott Main-belt Asteroid
Discovered on 9 September 1999 by LINEAR at Socorro.
Rachael Ann Scott (b. 1987) was awarded first place in the 2005 Intel International Science and Engineering Fair for her environmental sciences project. She is a member of the Northwest Mississippi Home Educators Association, Como, Mississippi, U.S.A.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Rachaelscott is today
Seen from above the solar system on 2026-10-14: Rachaelscott is 2.42 au from the Sun and 2.67 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21742 |
| Provisional designation | 1999 RU163 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 14.99 |
| Orbital period | 4.61 years |
| Semi-major axis | 2.77 au |
| Perihelion – aphelion | 2.32 – 3.22 au |
| Eccentricity | 0.164 |
| Inclination | 4.29° |
| Closest distance between its orbit and Earth's (MOID) | 1.30 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Rachael
All asteroids named after someone called Rachael
Also discovered on 9 September 1999
- (12127) Mamiya
- (12130) Mousa
- (12589) Davidanand
- (12590) Ballantine
- (12591) Bergey
- (12592) Brianchen
- (12593) Shashlov
- (12594) Sidorclare
- (12595) Amandashaw
- (12596) Shukla
- (12597) Williamdaniel
- (12598) Sierra