Birth sign.

When determining the position of the earth, astrologers will use traditional astrological theory to calculate the stars. When calculating, fix the position of the earth first, and then determine the relative positions of other planets in the solar system with the earth (just like all planets revolve around the earth). In astrological symbols, the center of the constellation table represents the earth, and there are twelve other constellation symbols around to form a ring. Each symbol occupies a fixed 30-degree field, and the planet moves according to this field. Planets pass through the twelve constellations in turn at different speeds, and the cycle is endless. (Picture 1: the orbit diagram of the star around the sun; Location maps of other planets and the earth; related data