Chinese and Japanese astronomers observe what has since come to be understood as a supernova.
Chinese astronomers record the sudden appearance of a bright star.
By 635 Chinese astronomers had observed that the tails of comets always point away from the sun.
Chinese astronomers were also among the first to record observations of a supernova.
It was noted by Chinese and Japanese astronomers, however.
It was in 1054 that the Chinese astronomers saw it blow up.
A bright comet had also been recorded by Chinese astronomers in 1661.
He is the first Chinese amateur astronomer who has a comet name after him.
Ancient Chinese astronomers first observed sunspots about 2,000 years ago.
Many historians regard him as the most prominent Chinese astronomer, engineer, and mathematician of all time.