What is the nickname of winter solstice?

1, also known as Winter Festival and Happy Winter, is one of the twenty-four solar terms and one of the eight astronomical solar terms, opposite to the summer solstice. The solstice in winter is the shortest day in a year. The winter solstice in the northern hemisphere is generally between 65438+February 2 1 and 65438+February 23, and 1 1 month is defined by the month of winter solstice in China calendar.

On the solstice of winter, the sun shines directly on the tropic of Capricorn. The winter solstice is also the shortest and longest day in a year in the northern hemisphere (north of the Tropic of Cancer). The arctic circle is in a state of permanent night, and the Antarctic circle is in a state of extreme day. From winter to the future, the position of direct sunlight began to move northward, the daytime hours in the northern hemisphere increased day by day, the sun height increased day by day at noon, and the sun shadow gradually shortened.