The origin of the twenty-four solar terms song dynasty

Twenty-four solar terms were divided by the wise people in ancient China according to the position of the sun on the ecliptic through careful observation of nature and life. The interval between two adjacent solar terms is 15 degrees, and every 15 degrees is a solar term. In order to facilitate memory, people made up twenty-four solar term song.

Twenty-four solar term song:

The spring rain shakes the spring and clears the valley, and the summer is full of mountains and summers.

Autumn dew, autumn frost, little snow in winter and cold in winter.

The two festivals remain unchanged every month, with a maximum difference of one or two days.

The first half of the year is June 2 1 day, and the second half is August 23.

Extended data:

The current 24 solar terms come from the fixed solar terms law formulated more than 300 years ago, that is, the time when the sun runs along the ecliptic from zero 15 degrees is called "a solar term". It runs 360 degrees every year, and * * * experiences 24 solar terms, twice a month.

Among them, the first solar term of each month is "solar term", that is, beginning of spring, Jingzhe, Qingming, Changxia, Mangzhong, Xiaoshu, beginning of autumn, Bailu, Hanlu, beginning of winter, Heavy Snow, Xiaohan, etc. 12 solar terms; The second solar term of each month is "Zhongqi", that is, there are 12 solar terms such as rain, vernal equinox, Grain Rain, Xiaoman, summer solstice, great heat, intense heat, autumnal equinox, first frost, light snow, winter solstice and great cold.