China Constellation Theory: What are 28 Stars?

The study of astronomy in ancient China began very early. Although it was not assisted by advanced scientific means, it did not stop our ancestors from studying astronomy. Twenty-eight stars is the main achievement of our ancestors' long-term study of astronomy, which can be called China constellation theory. So what is 28 stars? Astronomers of the ancient Han nationality in China divided the stars visible in the sky into 28 groups, which were called 28 nights (night, pinyin: XIU, medieval pinyin: siuh). One of China's ancient astronomical theories, also known as the Twenty-eight Palace or Twenty-eight Stars, was that ancient China divided the celestial regions near the ecliptic and celestial equator into 28 regions. India, Persia, Arabia and other ancient times also had a saying similar to China's twenty-eight nights. Twenty-eight constellations, also known as the twenty-eight house or twenty-eight stars, divide the stars in the southern transit into twenty-eight groups, which are a circle of stars distributed along the celestial ecliptic or equator (the equator of the earth extends to the sky). Divided into four groups, also known as four elephants, four beasts, four-dimensional and four-dimensional gods. There are seven stars in each group, and its origin is still not completely clear. At first, the ancients chose 28 stars to compare the movements of the sun, the moon, gold, wood, water, fire and earth as observation marks. Rocky's meaning is similar to the zodiac, which means the constellation table, indicating the positions of the sun, the moon and the five stars. In the Tang Dynasty, Twenty-eight Hostels became the main body of the twenty-eight celestial bodies, and these celestial bodies were still named after Twenty-eight Hostels. Different from Sanyuan, as a celestial body, Twenty-eight Hostels are mainly used to divide the ownership of star officials. Name of 28 Hostel: Oriental Black Dragon Seven Hostel: Jiao, Kang, Bian, Fang, Xin, Wei and Ji (jρ) Northern Xuanwu Seven Hostel: Dou (d u), Niu, female, virtual, dangerous, room and wall; West Seven Hostels: Kui, Lou, Stomach and White Tiger. The earthly branch originated from the ancient 28 stars, which is another expression of the year. The way to create earthly branches is to use some astrological symbols of 28 stars. Twenty-eight lodges start from Qiku and are arranged from west to east, which is consistent with the running direction of the sun and the moon: in the east, they are called Qinglong: Jiaomujiao, Kang Jinlong, Nyctereute, Fangri Rabbit, Xinyue Fox, Tail Fire Tiger and Jishui Leopard; In the south, Suzaku is called: Muan Jing, Ghost Golden Sheep, Swertia liutu, Stellaria, Zhang Yuelu, Winged Fire Snake and Lumbricus; In the west, white tigers are called: wood wolf, Lou Jin dog, stomach pheasant, chicken, bi, gun and fire monkey; The north is called Xuanwu: unicorn, Taurus, female bat, rising sun mouse, dangerous moon swallow, room fire pig and wall water. On the seventh night in the north, according to "Night Sailing Boat" edited by Zhang Dai in Ming Dynasty (anti-dog is partial, right is Ayu), it is called wall water _ (_ _), and the sound is rain.