Zhou bo's astrology is the phenomena of the sun, moon and stars in the sky.

1. Operating periods, operating lines and operating positions of the five planets: the sun, the moon and Jin Mu;

2. The sky position, azimuth distance and distribution combination of many stars, mainly Erbasu;

3. Changes of stars such as sunspots, comets, meteors, nova and aurora (called clouds in ancient times), such as period, time and degree;

4. Changes in the relationship between the sun, the moon and the stars, such as the time, orientation and degree of solar and lunar eclipses, and covering up the crime of aggression.

According to the specific content of ancient astrology in China, it can be divided into two categories.

The first category is astrology. It is a theory and technology to predict natural disasters on the earth and political and military anomalies of human society according to the nature, position and abnormal changes of various stars in the sky.

The second category is astrology or astrology. The origin of astrology can be traced back to primitive society, but astrology was not formed until the Tang Dynasty. It is the theory and technology of the ancients to predict and analyze personal destiny according to the running changes and relationships of the sun, the moon, the five stars and the twenty-eight nights.

"Distinguish the land of Kyushu by the stars, and all the fiefs are divided into stars and demons."

Division theory: the theory that the stars in the sky are related to the geographical position on the ground and a certain number of stars are allocated according to a certain area.

Kyushu is the Ji, Qing, Xu, Yang, Jing, Yu, Liang and Yongzhou mentioned in Shangshu.

The earliest astrological work in existence: Wuxing Zhan, incorporated the five elements into the five elements system.

Five Elements of God and Five Ways to Become Emperor

Ju Mang Muxuxing Oriental Taihao

Jin Taibai West Shao Hao Ru Shou

Southern Yan Emperor Zhu Yong was dazzled by fire.

The stars are everywhere, and the yellow emperor's back soil is in the middle.

Water stars turn north to Xu Xuanming.