(20219) Brianstone Main-belt Asteroid
Discovered on 6 April 1997 by LINEAR at Socorro.
Brian Stone mentored a finalist in the 2012 Intel Science Talent Search, a science competition for high-school seniors. He teaches at the Northview High School, Duluth, Georgia.Naming citation (20120506/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Brianstone is today
Seen from above the solar system on 2026-10-14: Brianstone is 2.22 au from the Sun and 2.73 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20219 |
| Provisional designation | 1997 GP36 |
| Orbit class | Main-belt Asteroid |
| Diameter | 12.4 km (#3,923 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0580 |
| Absolute magnitude (H) | 13.54 |
| Orbital period | 4.31 years |
| Semi-major axis | 2.65 au |
| Perihelion – aphelion | 2.09 – 3.21 au |
| Eccentricity | 0.210 |
| Inclination | 12.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.11 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Brian
- (4575) Broman
- (7476) Ogilsbie
- (8262) Carcich
- (8734) Warner
- (10059) McCullough
- (10066) Pihack
- (11371) Camley
- (11374) Briantaylor
- (11723) Briankennedy
- (12562) Briangrazer
- (12592) Brianchen
- (12926) Brianmason
All asteroids named after someone called Brian
Also discovered on 6 April 1997
- (12840) Paolaferrari
- (13206) Baer
- (18565) Selg
- (20214) Lorikenny
- (21359) Geng
- (22485) Unterman
- (22487) Megphillips
- (22492) Mosig
- (23672) Swiggum
- (23673) Neilmehta
- (23674) Juliebaker
- (23675) Zabinski