Three Walls of Ancient Astrology in China

These three walls are Wei Zi Wall, Qiu Wall and Shi Tian Wall. Each wall is a relatively large sky area, which contains several (small) stars (or constellations). According to the records in Qing Hui Dian, the division of Gan, Shi and Wu is different. There are stars in the east and west on every wall, which are arranged in a circle around and shaped like a wall, so it is called "wall".

Ziweiyuan is the middle wall of three yuan, living in the center of the northern sky, so it is also called Zhonggong, or Ziweiyong. Wei Zi Palace means Imperial Palace, and most stars are named after official names. It is located in the center of the north, with 15 stars in the east and 15 stars in the west. The two bows were joined together and surrounded by a wall. According to the observation records of Ziweiyuan during the Song You period, * * * has 37 constellations with 2 additional stars, 163 positive stars and 18 1 additional stars. Its sky area is roughly equivalent to the international constellations of Bear, Bear, Dragon, Hound, Mu Fu, Unbounded Constellation, Wang Xianxing, Hou Xian Constellation, Yingxian Constellation and Lubao Constellation.

Taiwei Courtyard is the upper wall of Sanyuan, located in the lower northeast of Ziwei Courtyard and south of Beidou. It covers an area of 63 degrees in the sky and is centered on the emperor. * * * contains 20 constellations, 78 main stars and 100 additional stars. It contains a part of constellations such as girls, latecomers and lions. Too small is the meaning of the government. Stars are often named after official names, such as Ting Wei, left law enforcement officer and right law enforcement officer.

Shi Tian Wall is the lower wall of Sanyuan, located in the southeast direction under Wei Zibi, occupying about 57 degrees in the sky, which is roughly equivalent to a part of the international cosmological constellations such as the Five Immortals, the Giant Snake and the Snake, including 19 star official (seat), 87 positive star and 173 additional star. It takes the throne as the center and becomes a screen fan. Shi Tian is a fair, and Tian Wenzhi, Book of Jin, said, "The son of heaven leads princes to prosper the city." Therefore, the names of stars are often used to name the market names of goods and instruments and commercial content. For example, Tian Wenzhi, Book of Jin, said: The emperor's seat stands for Yin and Yang, welcoming guests and buckets stand for quantity, welcoming guests is used to measure solids, buckets are used to measure liquids, and the goods representing Baoyu are the exclusive market for Baoyu, and the car shop is the main cargo area.