(13911) Stempels Main-belt Asteroid
Discovered on 22 August 1979 by C.-I. Lagerkvist at La Silla.
Eric Stempels (b. 1974) is an astronomer at Uppsala University. He operates a meteor camera and is largely involved in outreach activities.Naming citation (MPC batch dated 2018-09-25), IAU / Minor Planet Center, via NASA/JPL
Where Stempels is today
Seen from above the solar system on 2026-10-14: Stempels is 2.41 au from the Sun and 1.68 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 13911 |
| Provisional designation | 1979 QT1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.17 km (#14,782 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.279 |
| Rotation period | 1.15 hours |
| Absolute magnitude (H) | 14.79 |
| Orbital period | 3.61 years |
| Semi-major axis | 2.35 au |
| Perihelion – aphelion | 1.95 – 2.76 au |
| Eccentricity | 0.173 |
| Inclination | 1.34° |
| Closest distance between its orbit and Earth's (MOID) | 0.936 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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Also discovered on 22 August 1979
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