Will it get colder and colder after the solstice in winter?

After the solstice in winter, the weather will get colder and colder.

The winter solstice is the shortest day and the longest night in a year. After the winter solstice, the direct point of the sun gradually moves from the tropic of Capricorn to the north. At this time, the days are shorter and the nights are longer, so the solar radiation energy received by the earth is less than the divergent energy. Therefore, in the month after the winter solstice, the weather trend in China is getting colder and colder. We usually call this period "deep winter festival", and this cold weather situation is called "several cold days".

Winter solstice, also known as solstice, winter festival, child year, etc. It has both natural and humanistic connotations. It is not only an important solar term among the 24 solar terms, but also a traditional folk ancestor worship festival in China. The solstice in winter is one of the eight festivals in four seasons, and it is considered as a big holiday in winter. In ancient times, there was a saying that the winter solstice was as big as a year. The custom of winter solstice varies in content or details due to different regions. In southern China, there are customs of offering sacrifices to ancestors and enjoying the winter solstice. In northern China, it is a custom to eat jiaozi from winter to Sunday every year.

Historical origin of winter solstice

China's astrological culture has a long history and is profound. The twenty-four solar terms were originally formulated on the basis of changing stars. In different seasons and at different times, the Big Dipper will point in different directions, that is, "bucket handle points to the East, and the world is spring; Guide to barrel handle, it's summer in the world; Bucket handle refers to the west, and the world is autumn; Bucket handle refers to the north, and it is winter in the world. " .

"Twenty-four solar terms" is the product of ancient farming civilization, which is related to the time of gossip and has a long history. During the period of Emperor Wu of the Western Han Dynasty, the "twenty-four solar terms" were absorbed into the taichu calendar law as a supplement to the calendar to guide the agriculture in the northern Central Plains, and the "twenty-four solar terms" were measured in the Yellow River basin by the method of Tuguiriying.

The current "twenty-four solar terms" are determined according to the position of the sun on the ecliptic, that is, on a "ecliptic" with a circumference of 360 degrees (the apparent path of the sun on the celestial sphere for one year), the spring is divided into 0 degrees, and every time the sun runs on the ecliptic, 15 degrees is a "solar term". In the process of inheritance and development, the 24 solar terms have been incorporated into the lunar calendar and become an important part of the lunar calendar.

The winter solstice, known as the "southern solstice", is a solar term reflecting the direct sunlight movement. On the winter solstice, the sun goes south to the extreme, and the sun shines directly on the tropic of Capricorn. Since the winter solstice, the direct point of the sun has returned to the north. The solstice in winter is the turning point of "going south to north". Since then, the sun has risen in height and the days in the northern hemisphere have increased day by day.

The solstice in winter marks the rebirth of the sun and the round-trip movement of the sun into a new cycle. The solstice in winter is an auspicious day. After the solstice in winter, the days are getting longer and longer and the sun is rising. This is the beginning of a round-trip cycle directly pointed by the sun, which should be celebrated. Hanshu: "The sun shines on the winter solstice, and you are long, so congratulations."

Baidu encyclopedia-winter solstice