What are the ancient astrology in China?

In ancient times, astronomical astrology has always been highly valued because of the influence of the idea of harmony between man and nature. At that time, it was called "Lao Guo Xing Zong" and "Zheng Qi Yu Si" (Zi Shuping, who is neck and neck with Zheng Qi Yu Si, is now called "four pillars and eight characters", but there was no "Wei Zi Dou Shu" at that time). As for why astrology did not continue to develop since then, it was entirely because Zhu Yuanzhang was familiar with astronomical astrology in the Ming Dynasty. Later, in the late Ming Dynasty, it was preserved with the efforts of Xu Guangqi and others.