(21505) Bernert Main-belt Asteroid
Discovered on 22 May 1998 by LINEAR at Socorro.
Michael James Bernert (b. 1989) was awarded second place in the 2005 Intel International Science and Engineering Fair for his botany project. He attends the West Linn High School, West Linn, Oregon, U.S.A.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Bernert is today
Seen from above the solar system on 2026-10-14: Bernert is 2.36 au from the Sun and 1.38 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21505 |
| Provisional designation | 1998 KG28 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 5.58 hours |
| Absolute magnitude (H) | 14.95 |
| Orbital period | 3.37 years |
| Semi-major axis | 2.25 au |
| Perihelion – aphelion | 2.04 – 2.45 au |
| Eccentricity | 0.0918 |
| Inclination | 5.83° |
| Closest distance between its orbit and Earth's (MOID) | 1.06 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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