Chinese Astronomers - Ancient Pages

AncientPages.com - On 30 March 240 BC, the first recorded passage of Halley's Comet was observed by Chinese astronomers in the Chinese chronicle 'Records of the Grand Historian'

Chinese Astronomers Archive

On This Day In History: Sunspot Observed By Chinese Astronomers During The Han Dynasty – On May 10, 28 BC

On This Day In History: First Recorded Passage Of Halley’s Comet Observed By Chinese Astronomers – On Mar 30, 240 BC