Comparing the present situation of planetariums in Guangzhou Area with the development of planetariums in foreign countries, this article points out some common drawbacks in Guangzhous planetariums: small size, out of date equipment, lack of attraction, low rate of utilization and uneven distribution, etc.

Aiming at acquiring hints for human affairs by studying the celestial phenomena, the study of the sky in ancient China is essentially astrology,greatly different from modern astronomy.

If someone wants to investigate the date of the Zhou conquest of Shang on the base of celestial phenomena recorded in the documents, he has to eliminate the false and retain the true and then try to find .

Some previous scholars correlated the six dragons corresponding to the line statements of hexagram Qian ( , the 1st hexagram in the received version of the Zhouyi) to astronomical phenomena.

The building up of Changan is a dyhamic process,its planning thoughts betrays not only the use of the Palaces of Qin Dynasty,but model of the astronomical phenomena and the zigzags in both northern and Southern walls reveal the knowledge on the cultural thoughts about"the Big Diper" and "the Southern Dipper.

Examination and Notes to the Astronomical Records in <SUISHU>;