(20735) Stetzler Outer Main-belt Asteroid
Discovered on 10 December 1999 by LINEAR at Socorro.
Steven G. Stetzler (b. 1996) is an American astronomer at NASA’s Jet Propulsion Laboratory, working on asteroid photometry, data pipelines, and software development as part of the Solar System Dynamics group.Naming citation (WGSBN Bull. 6, #11, 35), IAU / Minor Planet Center, via NASA/JPL
Where Stetzler is today
Seen from above the solar system on 2026-10-14: Stetzler is 2.84 au from the Sun and 2.74 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20735 |
| Provisional designation | 1999 XU169 |
| Orbit class | Outer Main-belt Asteroid |
| Rotation period | 7.86 hours |
| Absolute magnitude (H) | 12.95 |
| Orbital period | 5.78 years |
| Semi-major axis | 3.22 au |
| Perihelion – aphelion | 2.78 – 3.66 au |
| Eccentricity | 0.138 |
| Inclination | 13.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.81 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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