Great past of Ancient Chinese Astronomy

I was amazed to know that ancient Chinese invented the first planetarium and that too it was made by an emperor . The planetarium used to be a big enclosed place with stars and constellations on the inside. The person using the planetarium would sit in a chair that was hanging from the top of the enclosed dome. Here not to be mistaken we Ancient India and Astronomy too had a great past on ancient astronomy.

Ancient Chinese astrologers in year 2300 BC used to observe total solar eclipse to forecast the health and successes of the emperors and if they were unable to do the predictions correctly they used to be beheaded. They used to predict solar eclipse by analysing Moon's motion.
It is believed that astronomy used to be government's activity in ancient China. The astronomer used to track solar , lunar and other planetary motions and what these phenomenon meant to the ruling emperors.

Solar eclipses, infrequent and dramatic, were important enough to be recorded in chronicles and on "oracle" bones."Oracle" bones are pieces of animal bones and tortoise shells inscribed with astronomical observations, that were probably used for divinations.

Records of solar eclipses from the Han dynasty (206 BC - 220 AD) are found primarily in two official histories: the Han-shu and the Hou-han-shu. However there are no records of eclipses from the Ch-in dynasty which came just prior to the Han dynasty (221 BC - 206 BC).

Total solar eclipse were found in Ming Dynasty. Accurate eclipse can be used to determine the rate of Earth's rotation.