What are the solar altitude angles in the 24 solar terms?

(calendar)

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The 24 Solar Terms

24

solar

Term) refers to the 24 special festivals in the China lunar calendar that represent seasonal changes, which are formulated according to the position changes of the earth on the ecliptic (that is, the earth's orbit around the sun), and each of them corresponds to a certain position reached by the sun every time it runs 15 on the ecliptic. The twenty-four solar terms are divided into 12 neutral solar terms and 12 solar terms, which correspond to each other one by one. The twenty-four solar terms reflect the annual apparent motion of the sun, so their dates are basically fixed in the Gregorian calendar. The solar terms in the first half of the year are on the 6th, the solar terms in the second half of the year are on the 8th and the solar terms are on the 23rd, with a difference of less than 1-2 days.

Twenty-four solar terms is a unique creation of China calendar, which has played an important role in promoting the development of agriculture and animal husbandry in China for thousands of years. The names of solar terms first appeared in the Yin and Shang Dynasties, and by the twenty-four solar terms in the Western Han Dynasty, they were complete. With the spread of China calendar, the 24 solar terms spread all over the world.