(40440) Dobrovsky Main-belt Asteroid
Discovered on 11 September 1999 by Pravec, P., Kusnirak, P. at Ondrejov.
Josef Dobrovský (1753-1829) was probably the most important Czech linguist. He did research in the Czech and Slavic languages and Czech literature. He codified the rules of the written Czech language.Naming citation (20030806/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Dobrovsky is today
Seen from above the solar system on 2026-10-14: Dobrovsky is 2.78 au from the Sun and 2.18 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 40440 |
| Provisional designation | 1999 RU34 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 14.51 |
| Orbital period | 5.29 years |
| Semi-major axis | 3.04 au |
| Perihelion – aphelion | 2.75 – 3.32 au |
| Eccentricity | 0.0938 |
| Inclination | 9.90° |
| Closest distance between its orbit and Earth's (MOID) | 1.76 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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All asteroids named after someone called Josef
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