Why is the winter solstice advanced by 1 day this year?
This winter solstice is one day earlier than last year.
According to the solar terms in a normal year (365 days a year), the winter solstice usually occurs on February 22, 65438 in the solar calendar. But this year's winter solstice will come on February 2 1, so this year's winter solstice is one day earlier than normal.
According to Li Defan, director of the Planetarium of Henan Women and Children's Activity Center, according to astronomy, the day when the sun shines vertically on the Tropic of Capricorn in the southern hemisphere is the winter solstice, so the winter solstice in normal years is generally 65438+February 22. But this year is a leap year, and the solar calendar in leap year has 29 days in February, one day more than the normal year, so the date of winter solstice in leap year is generally 65438+February 2 1. For example, in 2000 and 2004, the winter solstice was 65438+February 2 1.
Specifically, at 20: 04 on February 2 1 65438, the sun will shoot vertically into the tropic of Capricorn in the southern hemisphere, which is the exact time of winter solstice this year.
The custom of eating jiaozi from winter solstice is related to Zhang Zhongjing.
In Henan, every household has the custom of eating jiaozi from winter to Sunday every year. But not many people know the origin of this custom. In fact, this custom is also related to Zhang Zhongjing, a native of Henan.
According to legend, in the Eastern Han Dynasty, Zhang Zhongjing was the magistrate of Changsha, and later resigned and returned to his hometown to govern his neighbors.
When he returned to his hometown, he found that people on both sides of the Baihe River were hungry and cold, and many people's ears were frozen stiff. He asked his disciples to build a medicine shed and a medicine pot in Dongguan, Nanyang, to make "Quhan Joule Soup" and treat chilblain on the solstice of winter.
He boiled mutton, pepper and some herbs for dispelling cold in a pot, then fished out mutton and medicine, chopped them, made them into ear samples with flour bags, cooked them, and distributed them to everyone who came to ask for medicine with two horns and a big bowl of broth. People ate "Joule" and drank "Quhan Decoction", and they were all hot, their ears were hot, and their frostbitten ears were cured. Later generations learned to look like Joule, wrapped it up and made it into food, which is now "jiaozi" or "flat food".
Therefore, when we eat jiaozi on the solstice in winter, we should not forget the kindness of Zhang Zhongjing, a "medical sage", in Quhan Joule Decoction. Up to now, there is a folk song in Nanyang, which says, "Nobody cares if you freeze your ears when jiaozi bowls run amok from winter to morning." .
Zhengzhou will usher in the winter solstice cooling tomorrow.
Astronomically speaking, on the winter solstice, the sun shines almost directly on the Tropic of Capricorn, which is the shortest day in the northern hemisphere. Accordingly, the winter solstice in the southern hemisphere has the longest day.
Generally speaking, the winter solstice is the first day of winter in the northern hemisphere. After the winter solstice, most parts of the northern hemisphere will enter the period with the lowest temperature and coldest weather in a year, and the "beginning of winter Nine" will begin from the winter solstice to the morning.
After the winter solstice, the sun slowly moves to the tropic of cancer, and the days in the northern hemisphere gradually get longer and the nights get shorter. Therefore, in ancient times, there was a saying that "the winter solstice is a sun born", which means that the sun rises gradually, from winter solstice to solstice.
According to the forecast of the provincial meteorological observatory, Zhengzhou is sunny to cloudy today, and there is almost no wind. The highest temperature is about 9℃, and the lowest temperature is about 0℃.
It will be cloudy and sunny in Zhengzhou tomorrow, and the temperature will drop a lot compared with today. The highest temperature is only about 2℃, while the lowest temperature is about-1℃.
So when you eat jiaozi tomorrow, you'd better "wrap" yourself a little thicker to avoid catching a cold, coughing or even catching a cold.