What is the meaning of the constellation?

1, it is almost as difficult for friends to meet each other as the stars in the morning and evening. Du Fu mentioned in Give Eight Guards that Shen and Shang, one in the east and the other in the west, will never meet each other. Betelgeuse is actually Orion; Xinsu, also called Shangsu, is a Scorpio; "It's almost as difficult for friends to meet, and as for the stars in the morning and evening" refers to these two places, Scorpio and Orion.

In ancient times, the ups and downs of stars or constellations were often used for navigation and time determination. Ancient Egypt determined the beginning of a year by observing the rise of Sirius. In some areas, the ancient technology of determining position by observing stars still remains. Constellations and the literary images they represent often appear in the works of literati.

Although the importance of constellations has been relatively reduced in modern times, it has not lost its charm for astronomy lovers. Through its fascinating legend, constellations have played an extremely important role in the popularization of astronomy. Whenever there is a major astronomical phenomenon, astronomers, popular science workers and the media will always set off an astronomical upsurge in society, especially among young people.