The meaning of the Autumn Equinox is twofold:

1. The climate changes from hot to cool. According to China's ancient seasonal division of spring, summer, autumn and winter as the beginning of the four seasons, the autumn equinox is located in the 90 days of autumn, the equal division of the autumn.

2, equal day and night time, the sun reaches 180 degrees of yellow longitude on this day, direct sunlight on the Earth's equator, so most of the world on this day of the 24-hour day and night, each 12 hours. After the autumnal equinox, the direct sun began to enter the southern hemisphere from the equator, the northern hemisphere began to short days and long nights, the day began to be shorter than the night within a day.

Expanded Information

Customs of the Autumn Equinox Festival

1, eating autumn vegetables

The autumn equinox is the official start of trekking in autumn. In the Lingnan area, the Xie surname of Kaiping Cangcheng Town, which used to be a town of four euphonies (now five euphonies plus Heshan), has a custom that is not part of the festival, which is called "Eating Autumn Vegetables at Autumnal Equinox". Autumn vegetables are a kind of wild amaranth, which the villagers call Autumn Artemisia. On the day of the fall equinox, the whole village went to pick autumn vegetables. When you search in the field, you'll see that it's green, thin, and about as long as the palm of your hand.

2, send autumn cattle

Autumn equinox appeared from house to house to send the autumn cattle map, the two open red or yellow paper printed on the lunar calendar throughout the year, but also printed on the farmer plowing patterns, the name of the autumn cattle map. Sent to the map are some folk good language singers, mainly say some fall plowing and auspicious words do not violate the farming season, each to a family is a scene, see what to say what, said the owner of the joy and give money until.

3, flying kites

Kites category has the king word kite, chub kite, squint moth kite, Leigong bug kite, moonlight kite, the big ones are two meters high, the small ones are also two or three feet. The market sells kites, more small, suitable for small children to play, and most of them are still their own paste, larger, and also compete with each other to see which one's put high.

Baidu Encyclopedia - Autumn Equinox

People's Daily Online - Autumn Equinox|Autumn halfway before the reunion festival, and from then on the day is short and the night is long