Traditional Culture Encyclopedia - Weather inquiry - How many hours are there during the winter solstice?

How many hours are there during the winter solstice?

Question 1: How many hours of daylight are there on the summer solstice and how many hours are there on the winter solstice? In the northern hemisphere, the length of day and night during the winter solstice and summer solstice every year is also different in different places. For example, on the day of the summer solstice, in Shantou, Guangdong, the daytime lasts 13 hours and 30 minutes; in Nanjing, the daytime lasts 1 hour and 12 minutes; in Beijing, the daytime lasts 15 hours; and in Aihun, Heilongjiang Province, northeastern my country, the daytime lasts 16 hours. Hours 18 minutes. On the winter solstice, the daytime in Shantou is 10 hours and 36 minutes, the daytime in Nanjing is 10 hours, the daytime in Beijing is 9 hours and 16 minutes, and the daytime in Aihun is only 8 hours. The above daytime hours are calculated based on the total time from when the sun rises above the horizon to when it sinks below the horizon. However, due to the scattering effect of the atmosphere on sunlight, there is twilight before sunrise and twilight after sundown, which can make the day longer.

Question 2: How many hours are shorter during the winter solstice than during the summer solstice? The daytime of the winter solstice in Beijing is nearly 4 hours shorter than the daytime of the summer solstice

Question 3: How much longer does the daytime last after the winter solstice? Have you studied geography in high school? It is the 22nd solar term among the twenty-four solar terms. , the time point is between December 21st and 23rd of the Gregorian calendar every year. On this day, the sun shines directly on the Tropic of Cancer. The northern hemisphere has the shortest day and the longest night in the whole year. However, due to different longitudes and latitudes, the day length is different in each region.

Question 4: What is the difference in daytime between a day on the winter solstice and a day on the summer solstice? How long will the day be each day during the winter solstice? Two hours

Question 5: How much longer is the day after the winter solstice? After the winter solstice, the day will be longer. How much longer will it be? In the northern hemisphere, after the winter solstice, the day will get longer day by day, but it is not a linear relationship. It is a bit like a sine. The increasing portion of the curve is different from day to day and varies with latitude.

Question 6: How much longer does the day get every day after the winter solstice? Starting from the winter solstice, the direct sunlight moves northward, and the day gradually lengthens, with the average day length increasing by more than 90 seconds per day.

The winter solstice is a solar term divided according to astronomy. It was called "short day" and "short day solstice" in ancient times. On the winter solstice, the sun is located at 270 degrees longitude, and the sun shines almost directly on the Tropic of Capricorn. It is the shortest day of the year in the northern hemisphere. There are less than 10 hours between sunrise and sunset in various parts of our province. After the winter solstice, as the earth moves in its orbit around the sun, the direct sunlight zone gradually moves northward, causing the days in the northern hemisphere to lengthen and the nights to shorten. Although the sun has the lowest altitude and the shortest sunshine time on the winter solstice, the heat absorbed by the ground is less than the heat lost. However, the heat accumulated on the ground for a long time in the past continues to be lost, and the temperature near the ground has not yet dropped to the lowest, so it is not yet a day. The coldest time of the year. After the winter solstice, although the days are getting longer and the nights are getting shorter, in the short term the days are still short and the nights are long. The heat absorbed by the ground every day is still less than the heat lost, so the temperature does not immediately rise. It is customary among the masses to "count nine" since the winter solstice, and every nine days is a "nine". Around March 9th, the heat accumulated on the ground is the least and the weather is the coldest, so it is said that "the cold is on March 9th". Astronomy regards the winter solstice as the beginning of winter, which is obviously too late for most areas in our country. During the winter solstice, the average temperature in the Western Sichuan Plateau is generally below 0°C, and in the Sichuan Basin it is only around 6°C to 8°C. However, in the low-altitude river valleys of southwestern Sichuan, even in early January, the coldest time in the area, the average temperature is still above 10°C. It can be said that autumn is replaced by spring and there is no winter all year round.

The winter solstice means that severe winter has arrived. "Collection and Explanation of the Seventy-Two Hours of the Moon Order": "The energy stored in the end reaches its peak at this point." "Tongwei Xiao Jing Yuan Shen Deed" records: "The cathode and the yang begin to arrive, and the sun reaches the south, and gradually grows to the end." It begins every year around December 22 of the solar calendar when the sun reaches 270 degrees of celestial longitude. At this time, the sun almost shines directly on the Tropic of Capricorn, rises late in the morning, and sets in a low arc in the southern half of the sky, so the daytime in the northern hemisphere is the shortest.

However, the motherland has a vast territory. Although the day is the shortest at this time, it is also very short: in Shantou, Guangzhou and other places near the Tropic of Cancer, the day is about 11 hours and 31 minutes; north latitude is about 40 degrees In Qinhuangdao, Beijing, Jiayuguan, Kashgar and other places, the daylight hours are about 10 hours and 20 minutes; in the northernmost Mohe Town, the daylight hours are less than 7 hours. The farmer's proverb "It's unclear when you travel a hundred miles in winter, but it's dark when you travel hundreds of miles in summer." This illustrates the huge difference between day and night in the winter solstice and the summer solstice.

Question 7: How long is the length of each day after the winter solstice? Hello, this is still the same length, except that in winter the days are shorter and the nights are longer, and a day is still 24 hours.

Question 8: How long is the length of a day starting from the winter solstice? Different latitudes mean that the sun rises and sets at different times. So the length of the day is also different.

Question 9: I would like to know the approximate length of day and night in Mohe during the winter solstice? How many hours are there during the day? The day length during the winter solstice in Mohe, my country is about 7 hours.

Question 10: Why is the day the shortest during the winter solstice? China is in the northern hemisphere, and the sun reaches its southernmost point and shines directly on the Tropic of Capricorn