[Explanation] On August 3, the reporter learned from the Purple Mountain Observatory of the Chinese Academy of Sciences that on the 14th day of the lunar month, Tianyu will stage the "Fifteen Moon and Fourteen Rounds".
[Explanation] As long as the weather is clear, people can enjoy the round moon hanging in the night sky around the fifteenth day of the lunar calendar. This is called the "full moon".
[Concurrent] Hu Fanghao, Engineer, Science Popularization Department, Purple Mountain Observatory, Chinese Academy of Sciences
Generally speaking, the moon is sixteen round at fifteen, which means that there are more "full moons" on the fifteenth or sixteenth (lunar calendar), but today (August 3rd) we will encounter a rare situation , Which is the "full moon" on the fourteenth day of the lunar calendar. At 23:59 pm on August 3, the "wang" moment of the lunar month will appear in the sky, which is what we commonly call the "full moon".
[Explanation] Hu Fanghao told reporters that the moon's cloudy, clear and rounded are actually the periodic changes of the moon phases—as the relative positions of the sun, moon, and the earth change, the moon will take on different shapes on different days. When the sun, the earth, and the moon are arranged in a straight line, the moon in the middle is called "sho", and the earth in the middle is called "wang". The time of two "sho" or two "wang" The average interval is 29.53059 days.
[Concurrent] Hu Fanghao, Engineer, Science Popularization Department, Purple Mountain Observatory, Chinese Academy of Sciences
The moon moves around the earth in an elliptical orbit, and the earth also moves around the sun in an elliptical orbit. Therefore, the common effect of these two results is that the interval between "new" and "wang" will change, the shortest It can reach 13.9 days, and the longest can reach 15.6 days. However, because of this change in length, the "wang" moment, which is also the "full moon" moment, may appear on the fourteenth, fifteenth, sixteenth, and even seventeenth of (Lunar Calendar). In general, (Lunar Calendar) fifteenth, tenth Six are more, seventeen and fourteen are less. Although the "full moon" on the fourteenth of the (Lunar calendar) is very, very rare, this is only a statistical result of the appearance. The "full moon" tonight is almost the same as the usual "full moon".
[Explanation] When the weather is fine, people may wish to wait for the "fourteen full moon" to rise above the beautiful sky in the night sky.
Reporter Ge Yong from Nanjing, Jiangsu
Editor in charge: [Wang Kai]