Beijing Ancient Observatory

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The Beijing Ancient Observatory, built in 1442, was used during the Ming and Qing dynasties. The instruments at the site now were built with help from Jesuit missionaries in the 17th and 18th centuries.

中文: 北京古观象台是明清两代和北洋政府时期的国家天文台。建于1442年,是世界上最古老的天文台之一。



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