What are the similarities and differences between the constellations of Westerners and the Chinese astrological signs?

The so-called twelve constellations of the return time system. It is the Western astrology that applies the traditional astrological symbols of the signs of the zodiac to the system of regression time.

Return time system is based on the relative relationship between the Earth and the Sun to determine the twelve houses. This is different from the sidereal time system, which uses the position of the Earth and the cluster of stars to determine the zodiac. The plane of the Earth's orbit around the Sun (rotation). It is called the ecliptic. The circle between the Earth itself and the North and South Poles is equidistant. is called the equator. Expand the ecliptic and the equator. These two circles will be cut. And in the arc of the cut. There's a line. It's the diameter of the ecliptic. And the diameter of the equatorial plane. The ends of this line. (Both on the ecliptic. (both on the ecliptic and the equator) are called the vernal and autumnal equinoxes. These two points are 180 degrees apart. Then according to these two points. 30 degrees and one minute on the ecliptic. Totaling twelve minutes. This is the twelve constellations.

The astrology of the twelve signs of the division of two major systems: one is the return time system used in Western astrology, the other is India and the Qing Dynasty before the Chinese astrology used by the sidereal time system twelve signs.

The Chinese sidereal time system is based on the anecdotal evidence of Gan De of Qi and Shi Shen of Wei in the Warring States period. Wei Shi Shen anecdotal "Gan Shi Xing Jing" to deduce that the twenty-eight constellations can be traced back to the Warring States period of four hundred years B.C. The so-called twenty-eight constellations. The so-called twenty-eight lodges. Each host is a relatively obvious star group in the sky precisely because it is a star group, so it can be used as an indicator of astronomical observation. So it can be used as an indicator of astronomical observation, it is just a different division, Westerners see 12 constellations, the Chinese people see 28 stars. In fact, they are just the stars in the sky to do positional categorization!