The leap month in the lunar calendar is not new, it happens almost every four years, but have you ever heard of the leap month?The first month of the leap month is also a rare occurrence in leap months, the last time it appeared was in 1651, and the next time it has to wait for 2262 years, which is a rare occurrence in a hundred years after 611 years.
So, what exactly is the regulation of a leap month and a leap month?Before the Gregorian calendar became popular, we used the lunar calendar. As a traditional calendar, the lunar calendar was formulated by the ancient Qin Tianjian according to the laws of the sun and the moon. However, the lunar calendar is not the same as the lunar calendar. The solar calendar is based on the movement of the sun, while the lunar calendar is based on the movement of the moon, and the lunar calendar combines the best of both and is therefore also known as the lunisolar calendar.
It can be said that the lunar calendar is quite advanced, but for ordinary people, the lunar calendar is indeed a bit complicated. In the Gregorian calendar, the Earth orbits around 36524 days, so the solar calendar year is 365 days, an extra 0The 24 days are added by one day in February every four years, which is the leap year in the Gregorian calendar.
However, the leap year of the solar calendar actually has errors. Because 024 times 4 is just 096 days, less than a day, so we made excess compensation. Therefore, there is still a rule to be followed in leap years in the solar calendar: no leap every 100 years, and then 400 years again. In other words, only multiples of 400 are leap years. This is the leap year rule of the Gregorian calendar that we are more familiar with today. And according to the moon phases of the lunar calendar, the situation becomes even more complicated. Ancient observations found that the moon's orbital cycle was about a little more than 27 days, but the Earth's revolution caused the moon's rotation cycle to lag behind, and the moon phase change cycle was about 2653 days.
As a result, the lunar calendar appears to have fewer days of months than the solar calendar. The small month has only 29 days, while the big month has only 30 days. This algorithm of the lunar calendar is about 11 days less than the 365 days of the earth per year, which is the shortcoming of the lunar calendar, so we created the lunar calendar. Based on the lunar calendar, since there are about 11 days missing, every once in a while, a leap month needs to be added to the lunar calendar to compensate for the lack of this time.
Xu Guangqi and others in the Ming Dynasty, inspired by the Western calendar, formulated the "Leap Month without Medium Gas", which is also the precise regulation of the leap month in the current lunar calendar. The principle of the lunar calendar is that between the two winter solstices, if there is a 13th month, a leap month needs to be established. The intercalary month, on the other hand, belongs to the first month without a neutral month.
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The mystery of the leap month in the ancient calendar has attracted people's curiosity. This article on leap months details the difference between the lunar calendar and the lunisolar calendar and explains in depth what a leap month is and how it is prescribed. From the solar calendar to the lunar calendar to the lunar calendar, the evolution of the calendar fully demonstrates the observation and cognition of time and astronomical phenomena by human beings.
As an ancient calendar, the complexity and sophistication of the lunar calendar is breathtaking. The article points out that the formulation of the lunar calendar was based on the observation of the movement of the sun and the moon by the ancient Qin Tianjian. Its uniqueness lies in its combination of the advantages of the movement of the sun and the movement of the moon, and is known as the lunisolar calendar. The accuracy and sophistication of this calendar is amazing, but it is also difficult for the average person to understand because of its complexity.
The article also elaborates on the differences between the leap year mechanism of the solar calendar and the lunar calendar. The solar calendar adjusts for time differences by adding a leap day every four years, while the lunar calendar compensates for the time difference caused by the change in the phases of the moon by adding leap months. This method of adding or decreasing the time according to the changes in the phases of the moon provides a more accurate system of calendars.
It is worth noting that the rarity of leap months is mentioned in the text. In particular, the first month of the leap month only occurs once in a hundred years. This rare phenomenon shows the more mysterious laws behind the calendar, and it also makes people more curious and expectant.
However, even with its intricate calendar, the lunar calendar still has some flaws. The time difference with the solar calendar makes us need to constantly adjust to maintain the accuracy of the time, and the increase or decrease of leap months is also a constant correction of people's time cycle. This constant adjustment and revision of time also reflects the continuous development and improvement of human cognition of time.
Overall, this article provides a detailed introduction to the intercalary months and the lunar calendar, giving readers a deeper understanding of the mysteries of the ancient calendar. It makes people think more about time, calendars and astronomical phenomena, and it also triggers in-depth thinking about time cognition.
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