Traditional Culture Encyclopedia - The 24 Solar Terms - Lunar English
Lunar English
Lunar calendar is the current modern calendar in China, which belongs to the combined calendar of yin and yang, that is, the combined calendar of lunar calendar and solar calendar. According to the change cycle of the moon phase, each moon phase changes to one month, and the reference solar year is the length of one year, 24 solar terms are added, and leap months are set to make the average calendar year adapt to the tropic year.
The origin of the lunar calendar:
Lunar calendar is a traditional calendar adopted by China, also known as summer calendar, middle calendar and old calendar. Some people call it the lunar calendar. It uses the strict lunar cycle to determine the month, and sets the leap month to make the average length of a year close to the tropic year, which has the attributes of lunar month and solar year, so it is essentially a kind of yin-yang calendar.
The first day of the lunar calendar is the day when the sun and the moon meet, that is, the first day. The average length of the first month of the lunar calendar is about 29 and 53059 days, so some months are 30 days. Call the moon big; Some months are the 29th, called abortion. The date of the beginning of the month is calculated according to the position of the sun and the moon, not mechanically arranged.
The lunar calendar takes1February as a year, ***354 or 355 days, which is different from the tropic year 1 1 day. Therefore, coordination is achieved by inserting 7 leap months every 19 years. The arrangement of leap month is determined by the 24 solar terms. In the lunar calendar, the moon is full and short for one month, ***29 and a half days. For the convenience of calculation, the big moon is customized for 30 days and the small moon is customized for 29 days. During the period of 65438+mid-February of a year, generally, large and small months are arranged alternately.
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