Where does the autumnal equinox sun shine?

The sun shines on the equator at the autumnal equinox.

On the day of the autumnal equinox, the sun shines directly to the longitude 180 (autumnal equinox), almost directly to the equator of the earth, and the whole world is as long as day and night. 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.

In the same solar term, every year is 6 hours or 5 hours later than the previous year, and the leap year is 24 hours earlier. In this way, the date reflects that the same solar term remains unchanged or lags behind the previous year 1 day; The leap year remains unchanged or is earlier than the previous year 1 day. In this way, the starting point of the same solar term has three different Gregorian calendar dates. Take the "autumnal equinox" as an example, there are three situations: September 22nd, September 23rd and September 24th.

The custom of autumnal equinox:

1, send autumn cattle map:

In the custom of the autumnal equinox, welcoming the harvest, sticking bird's beak and sending pictures of autumn cows are all related to the autumn harvest and farming culture. These customs reflect people's expectations for a bumper harvest and a better life. On the autumnal equinox, people eat dumplings and put pictures of autumn cows, hoping that the sparrow's mouth will not destroy crops and harvest. In addition, there are some other custom activities, such as sending pictures of autumn cows and sending pictures of autumn cows door to door to express blessings for a bumper harvest. These customs and activities symbolize the harvest in autumn and the beauty of life.

2. Fly a kite:

In the autumn equinox, people like to fly kites. Because the weather is clear and the air is fresh in autumn, flying kites can not only bring happiness to children, but also make them feel the beauty of nature. Moreover, the wind on the autumnal equinox is suitable for flying kites. The higher you fly, the more beautiful the kite will be. Flying kites can also do something for the second half of the year, such as competing with friends to see who flies high. Therefore, flying kites is one of the most anticipated activities for children in this important festival of the autumn equinox.

The above contents refer to Baidu Encyclopedia-Autumn Equinox.