(21707) Johnmoore Main-belt Asteroid
Discovered on 7 September 1999 by LINEAR at Socorro.
John Pease Moore, IV (b. 1987) was awarded second place in the 2005 Intel International Science and Engineering Fair for his engineering project. He also received the Intel Foundation Achievement Award. He attends the Dayton Christian High School, Miamisburg, Ohio, U.S.A.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Johnmoore is today
Seen from above the solar system on 2026-10-14: Johnmoore is 2.44 au from the Sun and 2.87 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21707 |
| Provisional designation | 1999 RY88 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 2.58 hours |
| Absolute magnitude (H) | 14.61 |
| Orbital period | 3.50 years |
| Semi-major axis | 2.31 au |
| Perihelion – aphelion | 2.13 – 2.49 au |
| Eccentricity | 0.0781 |
| Inclination | 5.36° |
| Closest distance between its orbit and Earth's (MOID) | 1.14 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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