What solar term is the autumnal equinox?

The autumnal equinox is the sixteenth solar term among the twenty-four solar terms and the fourth solar term in autumn.

The autumnal equinox is around September 23rd of the Gregorian calendar every year, which is the "Sanqiu" busy season for agricultural autumn harvest, autumn ploughing and autumn planting. On the day of the autumnal equinox, the longitude of the sun is 180 degrees, and the day and night are equally divided. Sunshine changes, and the sun shines directly on the equator. From then on, the position of direct sunlight shifted from the equator to the southern hemisphere, and the days became shorter and the nights became longer in the northern hemisphere.

The autumnal equinox means officially entering autumn. The weather in most parts of China will gradually turn cold, and the temperature difference at night will gradually widen. Agriculture should prevent the first frost, cold dew wind and flood control.

On the autumn equinox, you should go to bed early and get up early. It is necessary to deliberately prevent "cold" from entering the body. Pay attention to prevent autumn dryness in diet. Pay attention to eating more warm food in the diet.

Autumnal equinox custom:

1, Mid-Autumn Festival

According to historical records, as early as the Zhou Dynasty, ancient emperors had the custom of offering sacrifices to the sun at the vernal equinox, to the earth at the summer solstice, to the moon at the autumnal equinox, and to heaven at the winter solstice. Its places of worship are called Ritan, Ditan, Yuetan and Tiantan. The Moon Altar in Beijing is the place where emperors of Ming and Qing Dynasties offered sacrifices to the moon. The Book of Rites says: "The son of heaven is sunny in spring and autumn is in the evening. The DPRK, the evening of the moon. " The dusk of the moon means offering sacrifices to the moon at night.

Step 2 lay eggs

In the autumn equinox, tens of millions of people all over the world are doing an "upright egg" experiment: choose a smooth and symmetrical fresh egg that has just been born for four or five days and carefully put it upright on the table. Gradually, the autumnal equinox has become the best time for vertical egg games, so there is a saying that "when the autumnal equinox arrives, the eggs will look good."

Step 3 eat autumn vegetables

"Autumn vegetable" is a kind of wild amaranth, which villagers call "autumn Artemisia". On the autumnal equinox, the whole village went to pick autumn vegetables. Picked autumn vegetables are generally cooked with fish fillets at home, which is called "autumn soup". There is a jingle: "autumn soup is dirty, wash the liver and intestines." The whole family is safe and healthy. "