On the same day as Teacher's Day, there were only three times this century. Astronomical popular science experts said that these two festivals appeared on the same day. This "coincidence" only three times this century, which is rare.

Mid -Autumn Festival is the same day as Teacher's Day. This century has only three times

Mid -Autumn Festival and Teacher's Day is coming. Coincidentally, the two sections appear on September 10th at the same time. Astronomical popular science experts said that these two festivals appeared on the same day. 's "coincidence" only three times this century, which is rare.

Mid -Autumn Festival staged "Happy Meeting" with Teacher's Day. Chinese Astronomical Society member and the director of the Tianjin Astronomical Society Zhao Zhizheng explained that the calendar formulated by the rules of the sun is called the solar calendar. For the lunar calendar, combined with the calendar formulated by these two is Yin and Grand Calendar . The traditional lunar calendar in my country belongs to the yin and yin calendar. The Mid -Autumn Festival is on the 15th day of the lunar calendar every year, which belongs to the festival of the lunar calendar.

The Chinese Lunar Calendar Law stipulates that 30 days in the big month, 29 days of small month, 12 Shuangwang Moon is 354 days or 355 days; in the Gregorian calendar, Earth revolves around the sun a weekly return year, 365 days in the year, , , , The leap year 366 days. The difference between the two is about 11 days. In order to make up for the number of days that are different from the return of the return year,

does not cause serious disconnection in the month and seasons. The adjustment method is to arrange 13 months in some years. The rules of setting up are based on the twenty -four solar terms.

"Because there are clever arrangements such as the gaze in our calendar, the Gregorian dates corresponding to the Mid -Autumn Festival each year are either about 11 days earlier than the previous year or the next year. . This also led to the birthday date of the Mid -Autumn Festival, the earliest difference between one month from the earliest. "Zhao Zhizheng said. The statistical results of

190 to 2100 have also confirmed this. The birthday date corresponding to the Mid -Autumn Festival fell on September 7 (such as 2052), and at the latest on October 8th (such Year). Therefore, every day from September 7th to October 8th each year is normal for the Mid -Autumn Festival. The

Teacher's Day began to be established in 1985, and the date is fixed on September 10 of each year. September 10, 2022 is the 38th Teacher's Day in my country. The astronomical calendar shows that in the 100th year of this century, the Mid -Autumn Festival and Teacher's Day were only three times on the same day, which were 2022, 2041 and 2079, respectively.

Plan: Liu Xinhui

Reporter: Zhou Runjian

Editor: Lian Changyan, Tang Jianhui

poster production: Anning

Xinhua News Agency, Xinhua News Agency TML1 Starry Studio produced

to enjoy the moon together!