(20416) Mansour Main-belt Asteroid
Discovered on 14 September 1998 by LINEAR at Socorro.
Philip George Mansour (b. 1991) is a finalist in the 2004 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his physical science project. He attends the Pine Valley Middle School, San Ramon, California.Naming citation (20041028/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Mansour is today
Seen from above the solar system on 2026-10-14: Mansour is 2.89 au from the Sun and 1.94 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20416 |
| Provisional designation | 1998 RR65 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.75 km (#9,294 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.147 |
| Absolute magnitude (H) | 14.25 |
| Orbital period | 4.67 years |
| Semi-major axis | 2.79 au |
| Perihelion – aphelion | 2.64 – 2.95 au |
| Eccentricity | 0.0566 |
| Inclination | 5.01° |
| Closest distance between its orbit and Earth's (MOID) | 1.65 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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All asteroids named after someone called Philip
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