What is the difference between the astronomical seasons divided by European and American countries and China?

Classification: science and engineering disciplines

Problem description:

What is the difference between the astronomical seasons divided by European and American countries and China? Come back early.

Analysis:

The traditional method of dividing the four seasons in China emphasizes the astronomical significance of the four seasons, with four of the 24 solar terms as the starting point of the four seasons and bisection and two to one as the midpoint. For example, in spring, the starting point is beginning of spring, the solar line is 3 15, the spring is divided into the midpoint, the long summer is the end point, the solar line becomes 45, and the sun runs 90 on the ecliptic.

The division of four seasons in the west emphasizes the climatic significance of the four seasons, taking the bisector of the sun as the starting point of the four seasons, such as spring as the starting point and summer solstice as the end point. These four seasons are one and a half months later than those divided by China.