(28103) Benmcpheron Main-belt Asteroid
Discovered on 14 September 1998 by LINEAR at Socorro.
Ben McPheron mentored a finalist in the 2012 Broadcom MASTERS, a math and science competition for middle-school students. He teaches at the St. Columban School, Loveland, Ohio.Naming citation (20121029/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Benmcpheron is today
Seen from above the solar system on 2026-10-14: Benmcpheron is 2.03 au from the Sun and 2.60 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 28103 |
| Provisional designation | 1998 RK80 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.35 km (#16,512 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.291 |
| Rotation period | 5.05 hours |
| Absolute magnitude (H) | 15.48 |
| Orbital period | 3.38 years |
| Semi-major axis | 2.25 au |
| Perihelion – aphelion | 1.99 – 2.52 au |
| Eccentricity | 0.118 |
| Inclination | 2.76° |
| Closest distance between its orbit and Earth's (MOID) | 1.01 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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