Western constellations originated in Babylon, one of the four ancient civilizations. It is said that there are more than 20 constellation names, such as the so-called zodiac 12 constellation, which was born in Mesopotamia about 5000 years ago. Since then, the Babylonians have continued to divide the sky into many regions and put forward new constellations. Around 1000 BC, 30 constellations have been proposed. Ancient Greek astronomers supplemented and developed the Babylonian constellation and compiled the ancient Greek constellation table. In the 2nd century A.D., Ptolemy, an ancient Greek astronomer, synthesized the astronomical achievements at that time and sorted out 48 constellations. Connect the main bright stars in the constellation with imaginary lines, imagine them as images of animals or characters, and give them appropriate names in combination with fairy tales. This is the origin of the constellation name. Most of the 48 constellations in Greek mythology live in the northern sky and north and south of the equator.
China Ancient Constellation
In order to facilitate research, people divide the starry sky into several regions, which are called constellations. China has long divided the sky into three walls and twenty-eight nights. Historical records and official records are quite detailed.
Sanyuan is the three areas around the north celestial pole, namely Ziweiyuan, Taiweiyuan and Tianshiyuan.
Twenty-eight branches are located in 28 areas near the ecliptic and the white road, namely, seven branches in the east, seven branches in the south, seven branches in the west and seven branches in the north.
The seven lodgings of Oriental Dragon are: horn, health, edge, room, heart, tail and dustpan.
The seven nights in South Suzaku are: well, ghost, willow, star, Zhang, wing and bird.
The seven accommodations of Xibaihu are: Kui, Lou, Wei, Chang, Bi, Gou and Shen.
The seven nights in Xuanwu in the north are: fighting, cattle, women, air, danger, houses and walls.
The eight characters are from the Book of Changes.
The twelve "eight characters" of the earthly branches are also called four pillars (year pillar, moon pillar, sun pillar and time pillar), each with two characters, with heavenly stems (A, B, C, D, E, Ji, Ke, Xin, Man and Ghost) at the top and earthly branches (Zi, Ugly, Yin, Mao, Chen and Si) at the bottom.
Therefore, the eight characters have developed in various ways in China for thousands of years. You can imagine how low the hit rate is at a time, and there are many and miscellaneous things involved, almost all aspects. Whether it is allowed or not, only you know.