Who named the constellation?

How are constellations named? The names of western constellations were first named after myths or epics left in the past civilizations of ancient Mesopotamia, Egypt and Babylon. If traced back to the earliest naming reasons, it can be said that astrology produced it. They imagined the striking distant lines of the stars in the sky as people or things, and named them constellations. Later, the name of this constellation spread to Greece, which was sorted and summarized by Ptolemy, a famous Greek astronomer, and became 48 Greek mythological constellations. By the 2nd century AD, the constellations in the northern sky had been roughly the same as today. However, dozens of constellations in Southern Sky were basically decided after17th century, because countries with earlier cultural development in the world are all in the northern hemisphere, and for these countries, many constellations in Southern Sky are invisible all the year round. The starry sky in the southern hemisphere has a new view of the starry sky because of navigation. These later developed constellations were named after navigation instruments, such as sextant, constellation, vela and carina ... but many navigators saw the southern constellation that Europe could not see, so new constellations followed. In order to unify and standardize, the International Astronomical Union organized all-sky constellations into 88 in 1928, which are currently used all over the world. Among them, 29 are north of the celestial equator, 46 are south of the celestial equator, and 13 crosses the celestial equator. This is the year 1928, and the boundaries on the celestial sphere are irregular and were arbitrarily divided by the ancients. Of these 88 constellations, 15 are near the south celestial pole, which residents living in Beijing will never see. The latitude of Shanghai is 9 degrees lower than that of Beijing, so you can see six constellations near the south celestial pole in Shanghai. The geographical latitude of Yulin Port at the southern end of South Island is lower, and residents can see 84 constellations a year. About half of the 88 constellations in the sky are named after animals, such as Ursa Major, Leo, Scorpio and Cygnus. A quarter of them are named after characters in Greek mythology, such as Cassiopeia, Andromeda and Perseus. The other quarter is named after instruments, such as microscope stand, telescope stand, clock stand, easel, etc. Although the ancient method of dividing constellations was unscientific, the names of constellations have been used to this day. As early as ancient times, people in China began to observe the changes of astronomical phenomena and associated them with human activities. In order to facilitate identification and recording, the ancients combined several adjacent stars in the sky and named them after royal government agencies and officials, so they called them star officials, which means officials of the Emperor of Heaven. Star officials and western constellations have the same effect. The number of stars in the star officer ranges from a moment to dozens. China constellation was formed from the Zhou Dynasty to the Han Dynasty and developed continuously. Star officials are scattered in the starry sky. In order to find them better, the ancients in China divided the starry sky into three walls, twenty-eight houses and thirty-one star zones. The northern celestial pole and the sky near the top of the head are divided into three areas, which are called the "Three Walls", namely, the Imperial Palace "Ziwei Garden" where the emperor lived, the "Taiwei Garden" where the emperor handled political affairs, and the "Tianshi Garden" where he traded with various vassal countries. Others are like cutting watermelons. Along the poles, the celestial sphere is cut into 28 pieces and recorded as 28 constellations. Not only the constellation itself, but also the constellation falling in each piece belongs to this constellation range. According to Lu Chunqiu, ancient Chinese found that the moon walked once every 27.3 days, and the zodiac was divided into 28 stars. The moon walked all night, just like staying in a hotel, which is convenient to record the position of the moon (28 nights, health, edge, square, heart, tail, dustpan, well, ghost, willow, dustpan. Many names of stars in the host are based on the host name, such as Kajupiter I ",Antares II" and Bijupiter V ". An elephant is formed every seven nights. * * * is four elephants, named after animals. They are black dragon, white tiger, suzaku and Xuanwu. Corresponding to the minister of Sanyuan Palace, the four elephants symbolize four subjects. (Note: Due to the special method of dividing celestial bodies in ancient China, the equatorial system was adopted in calculating the positions of celestial bodies in ancient China. In ancient western times, it was expressed by the coordinates of the zodiac and the zodiac, and it was changed to the equator after modern times. Who is more convenient and who is more scientific? Joseph Needham, a British historian of science, has a saying that China's is more scientific. )

Meaning is easy to observe and record.