(20317) Hendrickson Main-belt Asteroid
Discovered on 29 March 1998 by LINEAR at Socorro.
Gary Hendrickson mentored a finalist in the 2004 Intel Science Talent Search, a science competition for high school seniors. He teaches at the Allegany High School, Cumberland, Maryland.Naming citation (20040415/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Hendrickson is today
Seen from above the solar system on 2026-10-14: Hendrickson is 2.59 au from the Sun and 2.56 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20317 |
| Provisional designation | 1998 FD144 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.26 |
| Orbital period | 4.25 years |
| Semi-major axis | 2.62 au |
| Perihelion – aphelion | 2.59 – 2.66 au |
| Eccentricity | 0.0144 |
| Inclination | 3.76° |
| Closest distance between its orbit and Earth's (MOID) | 1.60 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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