It refers to the phenomenon that when the earth orbits the sun, the position it passes every year corresponds to the background position of the star. In ancient astronomy in China, the Earth-worshipping star is also called "Earth-worshipping star" or "Earth-worshipping star", which is the first year of the twelfth year of the lunar calendar and represents the beginning of spring. In the ancient calendar of China, the appearance of star worship marked the arrival of spring and was an important solar term.