Why do we use the Gregorian calendar to calculate the Lesser Cold solar term?
Many of the ancient festivals and solar terms in our country are calculated using the lunar calendar. So why is the Minor Cold solar term calculated using the solar calendar? The editor will take you to learn about it. The eleventh month of the lunar calendar is the first month of winter every year, which means the arrival of winter. Come to Mr. Shui Mo's website to learn about the relevant content of the eleventh month of the lunar calendar in 2018!Why is the Minor Cold solar term calculated using the Gregorian calendar?In fact, generally speaking, the 24 solar terms are calculated according to the Gregorian calendar. The 24 solar terms are the general term for the 12 solar terms and 12 solar terms in a year. They are the dates when the sun passes through 24 specific positions on the ecliptic in a tropical year, which is calculated by the Gregorian calendar. The ancient Chinese have always liked to use the lunar calendar. The lunar calendar is based on twelve synodic months as a year, and its length differs from the tropical year by about eleven days. Therefore, seven leap months are added every nineteen years to make its cycle consistent with the tropical year. Therefore, the lunar month may differ from the actual season by about half a month, which is not conducive to guiding agricultural production. This is also the reason why ancient Chinese astronomers gave names related to seasons, climate, and agricultural production to the 24 dates when the sun was in seasonal positions on the ecliptic, to reflect seasonal climate and guide farming time.What does Xiaohan mean?Minor Cold is the twenty-third solar term in the twenty-four solar terms. It marks the end of the Zi month in the Ganzhi calendar and the beginning of the Chou month. It falls between January 5 and 7 in the Gregorian calendar, when the sun is at 285° of the ecliptic longitude. For China, this time is around the "Three Nines" and the Minor Cold marks the beginning of the coldest days of the year. "Collected Explanations of the 72 Solar Terms" states: "In the twelfth month, the cold is still light at the beginning of the month, so it is said that it will be severe in the middle of the month." This is because in the Yellow River basin, the Great Cold was colder than the Lesser Cold at that time. Since Minor Cold is in the last few days of the "Second Nine", it enters the "Third Nine" a few days after Minor Cold, and the Minor Cold in winter corresponds to the Minor Heat in summer, so it is called Minor Cold. Some people say that at this time, the weather is cold, but the severe cold has not yet reached its extreme, so it is called the Minor Cold. |
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