(28669) Bradhelsel Main-belt Asteroid
Discovered on 5 April 2000 by LINEAR at Socorro.
Bradley Helsel mentored a finalist in the 2013 Intel Science Talent Search, a science competition for high-school seniors. He teaches at the Westview High School, Portland, Oregon.Naming citation (20130225/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Bradhelsel is today
Seen from above the solar system on 2026-10-14: Bradhelsel is 2.07 au from the Sun and 3.01 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 28669 |
| Provisional designation | 2000 GG55 |
| Orbit class | Main-belt Asteroid |
| Diameter | 1.63 km (#17,302 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.202 |
| Absolute magnitude (H) | 16.28 |
| Orbital period | 3.30 years |
| Semi-major axis | 2.21 au |
| Perihelion – aphelion | 2.03 – 2.40 au |
| Eccentricity | 0.0830 |
| Inclination | 2.78° |
| Closest distance between its orbit and Earth's (MOID) | 1.03 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Bradley
All asteroids named after someone called Bradley
Also discovered on 5 April 2000
- (15559) Abigailhines
- (15563) Remsberg
- (15564) Lateef
- (15565) Benjaminsteele
- (15566) Elizabethbaker
- (15567) Giacomelli
- (15568) Jathe
- (15569) Feinberg
- (15570) von Wolff
- (15573) Richardjoseph
- (15574) Stephaniehass
- (15575) Manyakumar