(20530) Johnayres Main-belt Asteroid
Discovered on 7 September 1999 by LINEAR at Socorro.
John Ayres mentored a finalist in the 2004 Discovery Channel Youth Science Challenge (DCYSC), a middle school science competition. He teaches at the Howard Bishop Middle School, Gainesville, Florida.Naming citation (20041028/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Johnayres is today
Seen from above the solar system on 2026-10-14: Johnayres is 2.93 au from the Sun and 3.47 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20530 |
| Provisional designation | 1999 RG55 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 14.33 |
| Orbital period | 5.58 years |
| Semi-major axis | 3.14 au |
| Perihelion – aphelion | 2.59 – 3.70 au |
| Eccentricity | 0.177 |
| Inclination | 1.04° |
| Closest distance between its orbit and Earth's (MOID) | 1.58 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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