Today is the autumnal equinox in the 24 solar terms. Like the spring people, the sun is almost on the equator, and the days and nights are almost the same. So many people are very curious about the difference between autumnal equinox and the beginning of autumn. Will it be hot after autumnal equinox?
What day is the autumn equinox in 2017
Autumn equinox 2017: 04:01:44, September 23, the fourth day of August (primary) in the lunar calendar 2017.
What does autumnal equinox mean
The autumnal equinox is the equinox of day and night.
At the autumnal equinox, the fingers are already fighting. The Yellow meridian of the sun is 180 DEG;. The autumnal equinox is the same as that of spring people. The sun is almost on the equator, and the days and nights are almost the same. From this day on, the position of direct sunlight continued to move from the equator to the southern hemisphere, and the northern hemisphere began to have shorter days and longer nights. According to the old calendar of autumn in China, this day is just half of the 90 days in autumn, so it is called the autumn equinox. But astronomically, autumn in the northern hemisphere begins at the equinox.
Is it still hot after the autumn equinox in 2017
It's not hot after the autumnal equinox.
In the autumn equinox, most of China has entered a cool autumn. The cold air in the south meets the gradually decaying warm and wet air, which produces precipitation and temperature drop again and again. As people often say, when it comes to 'one autumn rain and one cold', but the daily precipitation after the autumnal equinox will not be very large.
At this time, the field cultivation in the north and south is different. There is an agricultural saying in North China: "White Dew is early, cold dew is late, and wheat is planted in autumn at that time.". 'the proverb clearly stipulates the time of Sowing Winter Wheat in this area; while' the autumn equinox weather is white, and the good songs and good rice planting everywhere 'reflects the time of sowing rice in Jiangnan area. In addition, the taboos of the working people on the autumnal equinox are also summed up as proverbs, such as' autumnal equinox is only afraid of lightning flash, how much rice is expensive '.
What's the difference between Liqiu and autumnal equinox
Autumnal equinox, the 16th solar term in the 24 solar terms of the lunar calendar, is usually on September 22 or 23 every year. The climate in the South began to fall from this solar term. The first is that the sun reaches 180 degrees yellow longitude on this day, which is directed directly at the earth's equator. Therefore, the day is divided into 12 hours, 12 hours each. There is no polar day and night in the world. After the autumnal equinox, the polar night range around the north pole and the polar day range around the South Pole increased.
The beginning of autumn is the 13th solar term of the 24 solar terms, which starts on August 7, 8 or 9 every year. Autumn means the beginning of autumn. In the beginning of autumn, sycamore trees must begin to shed leaves, so there is the idiom "fall a leaf and know autumn". From the perspective of writing, the word "autumn" is composed of the characters of he and Huo, which means that he Gu is mature. Autumn is the first solar term of autumn, and autumn is a transitional season from hot to cool, then from cool to cold.
There are four seasons in a year, namely, spring, summer, autumn and winter, which means the beginning of a quarter.
There are "bisection" -- "spring equinox" and "autumn equinox", which can be understood as cutting the time of a year into two parts. That is to say, the day is as long as the night when it comes to the equinox.