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Kleť Observatory
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Astronomical observatory in Czechia

Kleť Observatory (Czech: Hvězdárna Kleť; obs. code: 046) is an astronomical observatory in the Czech Republic. It is situated in South Bohemia, south of the summit of Mount Kleť, near the town of České Budějovice. Constructed in 1957, the observatory is at an altitude of 1,070 metres (3,510 ft) and has around 150 clear nights per year.