(23992) Markhobbs Main-belt Asteroid
Discovered on 7 September 1999 by LINEAR at Socorro.
Mark Hobbs mentored a finalist in the 2007 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. He teaches at the Fairmont Private Schools, Santa Ana, California.Naming citation (20071026/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Markhobbs is today
Seen from above the solar system on 2026-10-14: Markhobbs is 2.72 au from the Sun and 3.60 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 23992 |
| Provisional designation | 1999 RO11 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 43.1 hours |
| Absolute magnitude (H) | 15.68 |
| Orbital period | 3.52 years |
| Semi-major axis | 2.32 au |
| Perihelion – aphelion | 1.88 – 2.75 au |
| Eccentricity | 0.187 |
| Inclination | 5.31° |
| Closest distance between its orbit and Earth's (MOID) | 0.893 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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