(20309) Batalden Main-belt Asteroid
Discovered on 31 March 1998 by LINEAR at Socorro.
John Batalden mentored a finalist in the 2004 Intel Science Talent Search, a science competition for high school seniors. He teaches at the Wayzata High School, Plymouth, Minnesota.Naming citation (20040415/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Batalden is today
Seen from above the solar system on 2026-10-14: Batalden is 2.18 au from the Sun and 2.08 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20309 |
| Provisional designation | 1998 FD110 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.79 km (#13,237 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.195 |
| Absolute magnitude (H) | 14.86 |
| Orbital period | 3.92 years |
| Semi-major axis | 2.49 au |
| Perihelion – aphelion | 2.15 – 2.82 au |
| Eccentricity | 0.136 |
| Inclination | 6.83° |
| Closest distance between its orbit and Earth's (MOID) | 1.13 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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