What are the 24 solar terms in a year?

Twenty-four solar terms: beginning of spring, rain, fright, vernal equinox, Qingming, Grain Rain, Changxia, Xiaoman, Mangzhong, Summer Solstice, Xiaoshu, beginning of autumn, Chushu, Bailu, Autumn Equinox, Cold Dew, Chufrost, beginning of winter, light snow, heavy snow, winter solstice, slight cold and severe cold.

The 24 special festivals representing seasonal changes were originally determined by the direction of the top of the bucket handle of the Big Dipper. 24 solar terms is also related to the changing law of the earth's position on the ecliptic, which corresponds to the earth reaching a certain position every 15 degrees on the ecliptic.

Twenty-four solar terms are a knowledge system formed by observing the movement of the sun in a year and understanding the changing laws of the four seasons in a year. It divides the sun's annual trajectory into 24 equal parts, and each equal part is a solar term, starting from beginning of spring and ending with the great cold.

Extended data:

The twenty-four solar terms were formulated by the ancients according to the ecliptic plane, reflecting the influence of the sun on the earth. The twenty-four solar terms express the concept between man and the natural universe.

It is an important part of the long history and culture of the Chinese nation and embodies the historical and cultural essence of Chinese civilization. The twenty-four solar terms are also a compass to guide agricultural production and to predict cold, warm, rainy and snowy weather in people's daily life.

The lunar calendar used today absorbs the "twenty-four solar terms" of the trunk calendar as a supplement to the calendar, and is adjusted by the "leap method" to make it conform to the tropic year, forming a combined calendar of yin and yang. Twenty-four solar terms are officially listed in UNESCO? List of representative works of human intangible cultural heritage. ?

References:

Baidu encyclopedia-24 solar terms