Timeline of Chinese astronomy

This is a timeline of Chinese records and investigations in astronomy.

ca. 2000 BC - Chinese determine that Jupiter needs 12 years to complete one revolution of its orbit.

ca. 1400 BC - Chinese record the regularity of solar and lunar eclipses and the earliest known Solar prominence and two novas (七日己巳夕有新大星并火，辛未酉殳新星).

ca. 1200 BC - Chinese divide the sky into twenty eight regions( Chinese constellation); for recognitions of the stars.

776 BC - Chinese make the earliest reliable record of solar eclipse.
613 BC, July - A Comet, possibly Comet Halley, record in Spring and Autumn Annals (秋七月，有星孛入于北斗).
532 BC - A nova was recorded in Records of the Grand Historian and Zuo Zhuan (周景王十三年春，有星出婺女).
28 BC - Chinese history book Book of Han makes earliest known dated record of sunspot.
185 AD - The earliest recorded supernova of RCW 86
687 - Chinese make earliest known record of meteor shower.
1054 - On July 4th, Chinese astronomers noted the appearance of a guest star, the supernova now called the Crab Nebula, Messier's M1.
1088 - In his Dream Pool Essays, the polymath Chinese scientist Shen Kuo (1031-1095) wrote of his findings for the improved meridian measurement between the polestar and true north, which was an invaluable concept for aiding navigation by use of the magnetic compass. Shen Kuo also argued for spherical celestial bodies by using evidence of lunar eclipse and solar eclipse, which promoted spherical earth theory and went against flat earth theory.