(31650) Frydek-Mistek Main-belt Asteroid
Discovered on 18 April 1999 by P. Pravec at Ondrejov.
The twin cities of Frýdek and Místek, on opposite sides of the Ostravice river at the border of Silesia and Moravia, are located in the beautiful landscape below the Beskydy Mountains. The discoverer lived in the twin cities for most of his childhood.Naming citation (20030106/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Frydek-Mistek is today
Seen from above the solar system on 2026-10-14: Frydek-Mistek is 3.00 au from the Sun and 3.93 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 31650 |
| Provisional designation | 1999 HW |
| Orbit class | Main-belt Asteroid |
| Rotation period | 2.88 hours |
| Absolute magnitude (H) | 14.08 |
| Orbital period | 4.54 years |
| Semi-major axis | 2.74 au |
| Perihelion – aphelion | 2.23 – 3.25 au |
| Eccentricity | 0.186 |
| Inclination | 14.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.23 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.