Astronomical experts say that Mid-Autumn Festival is a normal calendar phenomenon. Last appeared in 200910.3/kloc-0.0 (leap in May). The next Mid-Autumn Festival and National Day "reunion" will be on June 65438+ 10/(leap April) in 2020. Yes, you are not mistaken. National Day and Mid-Autumn Festival are on the same day! 65438+ 10 Mid-Autumn Festival, wait until 2036 (leap June).
The "two-festival reunion" is mainly due to the leap moon.
Astronomical experts say that this situation is mainly the result of leap month. Zhao Zhi Heng, director of Tianjin Astronomical Society, said:
According to the Chinese lunar calendar, the big month has 30 days, the small month has 29 days, and a year has 12 months * * 354 or 355 days, which is about 1 1 day less than the days in a tropical year. After four years, it is less than 1 month. Over time, there will be a strange phenomenon of time sequence and time disorder.
In order to solve this problem, the method of adding "leap month" is adopted. The leap month occurred in June this year, which not only delayed Valentine's Day in China, but also delayed the Mid-Autumn Festival. In addition, the Lunar Mid-Autumn Festival generally occurs between September 7th and June 6th in the solar calendar 10, resulting in the calendar phenomenon that the Mid-Autumn Festival coincides with the National Day.