Why are there constellations?

Constellation originated from the zodiac in western astronomy.

The constellations we are talking about now are divided according to the time period from the first ray of sunshine entering a palace to the last ray of sunshine leaving the palace. If Aries is from March 2 1 to April 20/,it means that the first sunshine will enter Aries Palace on March 2 1 and the last sunshine will leave Aries Palace on April 20.

In fact, after hundreds of thousands of years of changes, this date is no longer allowed in modern astronomy, but has been handed down as a tradition. It is said that the thirteenth one has been discovered now. It is said that it is said that ...