František Nušl

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František Nušl IPA: [ˈfrancɪʃɛk ˈnʊʃl̩] (1867-1951) was a Czech astronomer and mathematician.

In the first half of the twentieth century, following World War I, he was professor of astronomy at the Charles University of Prague, and head of the Clementinum observatory. In 1928 he became head of the Ondřejov Observatory. He also served as the chairman of the Czech Astronomical Society for a number of years.

He is noted for being the co-inventor of the circumzenithal, and had an interest in astronomical instruments that could be used to precisely determine geographical location.

[edit] Awards and honors

  • Since 1999, the František Nušl Award has been given by the Czech Astronomical Society as a lifetime achievement award.
  • Asteroid 3424 Nušl was named for him.
  • Nušl crater on the Moon was named for him.
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