(133280) Bryleen Main-belt Asteroid
Discovered on 18 September 2003 by J. W. Young at Wrightwood.
Named in honor of Bryan (b. 1976) and Eileen (b. 1979), son and daughter of the discoverer.Naming citation (20070730/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Bryleen is today
Seen from above the solar system on 2026-10-14: Bryleen is 2.47 au from the Sun and 3.42 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 133280 |
| Provisional designation | 2003 SM17 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.87 km (#15,510 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.309 |
| Absolute magnitude (H) | 15.09 |
| Orbital period | 5.25 years |
| Semi-major axis | 3.02 au |
| Perihelion – aphelion | 2.43 – 3.61 au |
| Eccentricity | 0.197 |
| Inclination | 7.70° |
| Closest distance between its orbit and Earth's (MOID) | 1.44 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 18 September 2003
- (128228) Williammarsh
- (133293) Andrushivka
- (170306) Augustzatka
- (177157) Skoffelza
- (209089) Csepevaleria
- (265059) Bajorgizi
- (653564) Genersich