What does the first solar term after the autumnal equinox mean?

The autumnal equinox is the solar term after the Millennium. Because the autumnal equinox belongs to the autumn solar term, the weather is getting colder and it is necessary to gradually add clothes. So what is the first solar term after the autumnal equinox? What does the autumnal equinox mean? Next, let's take a look at this issue of the old almanac!

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What is the first solar term after the autumnal equinox? Cold dew enters the "autumnal equinox" solar term around September 23rd every year, when the sun reaches longitude 180 degrees. Every year around 65438+1October 8 (65438+1October 8 ~ 9), when the sun moves to longitude 195 degrees, it is the cold dew of 24 solar terms. Cold dew is the seventeenth solar term in the twenty-four solar terms of the lunar calendar, belonging to the fifth solar term in autumn, which indicates the official start of the autumn season; "Twenty-four solar terms" said: "In September, the dew is cold and will condense." Cold dew means that the temperature is lower than that of the white dew, and the dew on the ground is colder and will soon condense into frost. In the cold dew season, Nanling and the vast area to the north have entered autumn, the northeast has entered late autumn, and the northwest has entered winter or is about to enter winter.

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What does the autumnal equinox mean? It means officially entering autumn. Interpretation of autumnal equinox: One of the 24 solar terms of the lunar calendar means that it officially enters autumn.

The autumnal equinox is the sixteenth of the twenty-four solar terms, and the time is generally from September 22nd to September 24th of the Gregorian calendar every year. On the day of the autumnal equinox, the sun reaches the longitude 180 (autumnal equinox), almost reaching the equator of the earth, and the length of day and night is equal all over the world (regardless of the refraction of the sun light by the atmosphere and the shadow in the morning). In ancient times, there was a saying that "the sun is sacrificed in spring and the moon is sacrificed in autumn", and the autumnal equinox was once a traditional "moon festival". Now Mid-Autumn Festival comes from the traditional Mid-Autumn Festival.

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After the autumnal equinox, the direct point of the sun continued to move from the equator to the southern hemisphere, and the days in the northern hemisphere began to shorten and the nights became longer, that is, the days in a day began to be shorter than the nights; The southern hemisphere is the opposite. Therefore, the autumnal equinox is also called the landing point. At the North Pole and South Pole, on the day of the autumn equinox, the sun is on the horizon all day. After that, as the direct point of the sun continued to move southward, a six-month polar night began near the North Pole, which gradually expanded and then narrowed. A six-month polar day began near the South Pole, which gradually expanded and then narrowed.

On June 2, 2065438, the official reply on the establishment of "China Farmers Harvest Festival" was issued, and it was agreed that the annual autumn equinox of the lunar calendar would be established as "China Farmers Harvest Festival" from June 20, 2065438.

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