(28689) Rohrback Main-belt Asteroid
Discovered on 5 April 2000 by LINEAR at Socorro.
Joan Rohrback mentored a finalist in the 2013 Intel Science Talent Search, a science competition for high-school seniors. She teaches at the Sierra Canyon School, Chatsworth, California.Naming citation (20130225/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Rohrback is today
Seen from above the solar system on 2026-10-14: Rohrback is 3.05 au from the Sun and 3.60 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 28689 |
| Provisional designation | 2000 GA75 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.62 km (#16,028 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.283 |
| Absolute magnitude (H) | 15.25 |
| Orbital period | 4.62 years |
| Semi-major axis | 2.78 au |
| Perihelion – aphelion | 2.48 – 3.07 au |
| Eccentricity | 0.106 |
| Inclination | 3.73° |
| Closest distance between its orbit and Earth's (MOID) | 1.47 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Joan
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All asteroids named after someone called Joan
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