(190617) Alexandergerst Main-belt Asteroid
Discovered on 19 November 2000 by J. Kandler at Drebach.
Geophysicist Alexander Gerst (b. 1976) was the third German astronaut onboard the International Space Station. He studied at the University of Karlsruhe, where he received a masters degree in physics and also at Victoria University of Wellington, where he was awarded a Master of Science.Naming citation (MPC batch dated 2015-03-05), IAU / Minor Planet Center, via NASA/JPL
Where Alexandergerst is today
Seen from above the solar system on 2026-10-14: Alexandergerst is 3.06 au from the Sun and 4.03 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 190617 |
| Provisional designation | 2000 WT9 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.65 |
| Orbital period | 4.11 years |
| Semi-major axis | 2.56 au |
| Perihelion – aphelion | 1.82 – 3.31 au |
| Eccentricity | 0.291 |
| Inclination | 4.49° |
| Closest distance between its orbit and Earth's (MOID) | 0.827 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.