The winter solstice refers to the point at which the earth is in the orbit of revolution at the moment when the sunlight directly shines on the Tropic of Capricorn. The winter solstice is the turning point of the sun's northward return. After that day, it will take a "turning back road". The point of direct sunlight starts to move northward from the Tropic of Cancer, and the days in the northern hemisphere will increase day by day.
From the perspective of the law of solar terms, the beginning of spring is the starting point of the rising of yang qi in the "yin and yang" qi. From the beginning of spring, yin and yang transform, yang qi rises, and the beginning of spring marks the beginning of a new cycle and the rebirth of everything; The winter solstice is the starting point of the sun's return. Since the winter solstice, the sun's height has risen. The winter solstice marks that the movement of direct sunlight has entered a new cycle and the day is growing day by day. The ancients also regarded the winter solstice as a "auspicious day".
- Chinese name
- Winter solstice
- Foreign name
- The Winter solstice
- Meaning
- Orbit points of the sun's direct reflection on the Tropic of Capricorn
- Features
- The shortest day in the northern hemisphere of the earth
- See publications
- Astronomical Terms (Second Edition), Science Press
- Time of publication
- 1998 [1]
The ancient people took the moment when the sun reached 270 ° of the Yellow Meridian as the winter solstice, when the sunlight directly hit the Tropic of Capricorn of the Earth. The winter solstice is the shortest day and the longest night in the Northern Hemisphere. The winter solstice is also the beginning of the rise of the sun's height, indicating that the direct sunlight movement has entered a new cycle. On the winter solstice, the sun goes southward to the extreme, which is the day with the shortest day time and the longest night time in the Northern Hemisphere (China is located in the Northern Hemisphere). Since that day, the direct sunlight point returns to the north, and the sunlight becomes stronger and stronger, and the day grows day by day. The winter solstice is the turning point of "going south and returning north every day". For all parts of the Northern Hemisphere, the sun's height has risen since then, and the sun's light has gradually increased, so the ancients regarded this day as a "auspicious day".
The winter solstice is a solar term that reflects the return movement of the direct sunlight point. There is a saying that "one sun rises on the winter solstice".
