What are 28 stars?

China used to divide the stars in the sky into three walls and twenty-eight huts, namely Wei Zi Wall, Qiu Wall and Shi Tian Wall. It probably originated in the Warring States period, and mainly classified and named the stars near the North Celestial Pole. Generally, the imperial management institutions on the earth were moved to the sky, with obvious official consciousness. Twenty-eight stars are a circle of stars distributed along the ecliptic or the celestial equator (the equator of the earth extends to the sky). Divided into four groups, also known as four elephants, four beasts, four-dimensional gods and four-dimensional gods. There are seven stars in each group, and its origin is still not completely clear.

The seven hotels in the East are horn, sound, mutual, room, heart, tail and dustpan, including 46 constellations and more than 300 stars, forming the image of a black dragon. Many scholars believe that Gan Kun's "Don't use the hidden dragon", "Seeing the dragon in the field", "Jumping into the abyss", "Flying dragon in the sky" and "Kang Long has regrets" in the Book of Changes are just the astronomical phenomena described in Seven Nights on a Dragon. Shi Xing Jing said: "The horn is the head of the black dragon and the right of Chunsheng, that is, the horn of the black dragon." Shuowen called Kang Ren's neck also, so Kang Su was the neck of the black dragon. The Pleiades, also known as the heavenly roots, are the breasts of the black dragon. Accommodation is the belly of the black dragon, and because the dragon is a Tianma, it is also called Tianfu or Mazu. The heart is big Mars. The tail is the tail of the black dragon. According to the ancient dividing line (the stars in the sky correspond to a certain area on the ground), the tail lodge and the skip lodge correspond to Jiujiang mouth. Therefore, it is also called Jiujiang, and there are heavenly stars, fish stars and turtle stars nearby. Jisu is also the tail of the black dragon, and there are bran stars and pestle stars nearby.

The seven nights in the north are barrels, cows, women, emptiness, danger, houses and walls. There are 65 constellations and more than 800 stars, which form the image of snakes and turtles, so it is called Xuanwu Seven Nights. The first bucket element of Xuanwu Yuangui in the north is composed of six stars, which is also like a bucket. Generally known as Nandou, it is in charge of life and death together with Beidou, also known as the Temple of Heaven. Niu Su has six stars, which are shaped like an angle. There are four stars in the hostel, which are shaped like dustpans. The virtual main star is one of the four bright stars, also known as the celestial world, which is quite ominous. In ancient times, the empty stars dominated autumn, which contained the image of cold, and everything withered, which was really sad. There are grave constellations, empty beams and house constellations in dangerous houses, which are also ominous, reflecting the inner uneasiness of the ancients in late autumn and winter. Guest rooms, also known as Xuangong, Qingsi and Xuanming (Water God), tell people to strengthen their rooms to survive the severe winter. The wall snail is similar to the ventricular snail and may contain the meaning of strengthening the courtyard wall. Xuanwu star has a very high position in the north. The Old Zhenwu Temple in Beijing (outside Fuxing Gate) is dedicated to Emperor Xuanwu.

In the west, there are seven constellations, including Que, Lou, Stomach, Zan, Bi, Dog and God. There are 54 constellations and more than 700 stars, which constitute the white tiger pattern. Quesu consists of sixteen stars that are not too bright, and it is shaped like a sole. The tail regarded as the god of white tigers. There are three stars in the building, and there are constellations such as Zuo Geng, You Geng, Tian Cang and Tian General nearby. The three stars in the belly are very close together, and there are constellations such as Tianchuan, Kyrgyzstan corpse and stagnant water nearby. It seems that the appetite is too small to digest so much food, and I have a little indigestion. The Pleiades is a famous Pleiades star cluster, and there are many myths and legends about it. There are rolling tongues and stars in the Pleiades, which seems to mean that disaster comes from the mouth. Soapy's eight stars, shaped like forks and claws, were called Bi in ancient times, and Bi Star was also called Rain Master (White Star is Uncle Yu), also called Screen, Counting Screen and Xuanming (the same room); In our country, Soapy is a rain star. The three stars are almost completely close together, which is really a bit cherry. Betelgeuse has seven stars, with three stars in the middle in a row and two stars on each side. The seven stars are very bright and conspicuous in the sky, just opposite to the big Mars. Today, we call different opinions businessmen and brothers who don't meet each other businessmen, all from this.

The seven nights in the south are wells, ghosts, willows, stars, Zhang, wings and birds. There are 42 constellations and more than 500 stars. Its image is a rosefinch spreading its wings and flying. Su Jing has eight stars, called Gemini in the west, and there are constellations such as Beihe River, Nanhe River (puppy constellation), Jishui and Shuifu nearby. It is said that there are four stars in the Ghost House, one is a horse, the other is a soldier, the other is a cloth and silk, and the other is a jade. There are other constellations such as Tengu, Tian She and Waichu nearby. Liu Su's eight stars, shaped like weeping willows, are the mouth of Suzaku. Seven of the stars are Suzaku's neck, and there are eleven stars in Xuanyuan nearby. Zhang Su's six stars are Suzaku's coffin, and there are fourteen stars in the nearby Temple of Heaven. Twenty-two stars in the wing can be regarded as the wings and tail of Suzaku. Four-star Hiba is also called crown block, with four stars in the middle and two stars on the left and right, which is the "image of the car".