Does the autumnal equinox begin in autumn? What is the origin?

The autumnal equinox is 16 of the 24 solar terms in China, and it also belongs to the autumn solar term. After the autumnal equinox, the weather gradually turns cold, so is the autumnal equinox the beginning of autumn? What is the origin of the autumnal equinox? Next, let's take a look at this issue of the old almanac!

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Does the autumnal equinox begin in autumn? Yes, the autumnal equinox solar terms have really entered autumn. As a solar term with equal time between day and night, people should also keep the body "yin and yang as secrets" according to the law of yin and yang balance in health care. Su Wenzhi's Theory of Truth says, "Look carefully at the land of Yin and Yang and flatten it for the time being", and the land of Yin and Yang should not be biased. In order to maintain the balance of yin and yang, we must first prevent the invasion of foreign evil qi. The weather is dry in autumn, and the main evil is dryness. There is residual heat before the autumnal equinox, so it is more common in warm and dry; After the autumnal equinox, bursts of autumn wind hit, causing the temperature to drop gradually and the cold to get heavier and heavier, so there was more coolness and dryness. At the same time, the change of dryness, temperature and coolness in autumn is also related to everyone's physique and physical reaction. To prevent cold and dryness, we must persist in exercising, strengthen our physique and improve our disease resistance. Autumn exercise focuses on benefiting the lungs and moistening dryness, such as practicing breathing, chewing teeth, swallowing and moistening dryness.

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The origin of the autumnal equinox The autumnal equinox falls on September 22nd, 23rd or 24th of the Gregorian calendar every year, which is one of the twenty-four solar terms of traditional festivals in China. At this time, the sun reaches 180 degrees of the ecliptic. The meaning of the "twenty-four solar terms" in the autumnal equinox: "See the vernal equinox in mid-August". "Divide" means to divide day and night equally. 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 south, and the days in the northern hemisphere have gradually shortened, the nights have become longer, and the temperature has dropped, which is of universal significance throughout the country. At the autumnal equinox, "fen" means "half". At the autumnal equinox, the world is as long as day and night. After the autumnal equinox, the days are getting shorter and shorter in the northern hemisphere, and the nights are getting longer and longer in the southern hemisphere. The characteristics of the autumnal equinox The autumnal equinox solar terms are special among the 24 solar terms. The climate of the autumnal equinox At the autumnal equinox, most parts of China have entered a cool autumn. The cold air from the south meets the warm and humid air that gradually decays, resulting in continuous precipitation and the temperature dropping again and again.

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As people often say, it's time for "an autumn rain and a cold", but the daily precipitation after the autumnal equinox will not be great. At this time, the field farming in the south and the north is different. In northern China, there is an agricultural proverb that says: "The white dew is early, the cold dew is late, and it is the right time to plant wheat in the autumn equinox." Proverbs clearly stipulate the sowing time of winter wheat in this area; And "White clouds come in autumn equinox, good songs and good rice seeds are everywhere" reflects the planting time of rice in Jiangnan area. In addition, the taboos of working people on the solar terms of the autumnal equinox are also summed up as proverbs, such as "the autumnal equinox is only afraid of lightning, and more meters are more expensive."

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