The meaning of 24 solar terms autumnal equinox

1 and 24 solar terms and the significance of the autumnal equinox

2, the autumnal equinox interpretation: one of the 24 solar terms of the lunar calendar means officially entering the autumn.

3. China's ancient book "Spring and Autumn Stories, Yin and Yang in and out" said: "The autumn equinox, Yin and Yang are also half-phase, so it is hot and cold day and night." The autumnal equinox means "half" "Autumnal Equinox" refers to the method of dividing the seasons in ancient China, with beginning of spring, Changxia, beginning of autumn and beginning of winter as the four seasons. The autumnal equinox lives in autumn for 90 days and divides the autumn equally.

4. The meaning of the "twenty-four solar terms" in the autumnal equinox: "See the vernal equinox in mid-August". It means equal day and night. Like the vernal equinox, the sun shines directly at the equator of the earth, and day and night are equal. Since then, the position of direct sunlight has moved further south, and the days in the northern hemisphere have gradually shortened, the nights have gradually lengthened, and the temperature has dropped, which is of universal significance throughout the country.