(230667) Janmlynar Main-belt Asteroid
Discovered on 25 September 2003 by KLENOT at Klet.
Czech physicist Jan Mlynář (1966–2023) split his time between fusion research at tokamaks at the Institute of Plasma Physics and education at the Faculty of Nuclear Science, Czech Technical University, Prague. He was known both as a visionary scientist and dedicated educator with impact on the public through books and presentations.Naming citation (WGSBN Bull. 4, #6, 8), IAU / Minor Planet Center, via NASA/JPL
Where Janmlynar is today
Seen from above the solar system on 2026-10-14: Janmlynar is 2.60 au from the Sun and 2.30 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 230667 |
| Provisional designation | 2003 SZ200 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.02 |
| Orbital period | 4.71 years |
| Semi-major axis | 2.81 au |
| Perihelion – aphelion | 2.58 – 3.04 au |
| Eccentricity | 0.0830 |
| Inclination | 3.15° |
| Closest distance between its orbit and Earth's (MOID) | 1.56 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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