astronomy science experts, a " super moon " will appear in the night sky on June 14 (the 16th day of the fifth lunar month), which is also the "second largest full moon" this year. As long as the weather is fine, people all over the country can enjoy a round and round moon, like an exquisite white jade plate hanging high in the sky.
When the moon and the sun are on both sides of the earth, and the ecliptic longitude of the moon and the sun are 180 degrees different, the moon seen on the earth is the roundest, which is called a "full moon", also known as "looking". The fourteenth, fifteenth, sixteenth or even seventeenth days of each month in the lunar calendar are all times when the full moon may appear.
member of the Chinese Astronomical Society and director of the Tianjin Astronomical Society, Xiu Lipeng, said that the elliptical orbit of the moon around the earth is flatter than the elliptical orbit of the earth around the sun. In addition, the moon is relatively close to the earth. So the Moon looks a little larger when it's near perigee than when it's near apogee.
In a calendar year, there are usually 12 or 13 full moons. If the full moon happens to be near the perigee, the moon will look big and round at this time, which is called a "super moon" or "super full moon". . "Super moons" are not uncommon, occurring as little as once or twice a year and as often as three or four times a year. The annual "maximum full moon" occurs when a full moon occurs closest to the moon's closest position to perigee.
The full moon that appeared on June 14th had its fullest moment at 19:52, and the moon passed perigee at 7:23 on June 15th. The difference between the fullest moon and the perigee time was only less than 12 hours. Therefore, the apparent diameter of the moon surface of this full moon is very large, which is almost the same as the "largest full moon" of this year. This year’s “biggest full moon” occurs on July 14 (the sixteenth day of the sixth lunar month).
"14 After nightfall, interested members of the public across my country can pay attention to the big moon in the night sky and appreciate it with the naked eye without the help of any equipment. " Xiu Lipeng said, "This year's 'minimum full moon' occurred this year On January 18th, if anyone is interested in photographing the full moon at that time, they can use the same equipment and the same focal length parameters to photograph it again when the moon is at the same horizon coordinate position. Compare the two to see what this year's How 'big' is the second largest full moon?"
Information pictures were taken by Beijing Daily client reporter Bai Jikai
(Original title: You can enjoy it with the naked eye! Just next Tuesday, the "super moon" will appear in the night sky)
Source: Xinhua Social
process editor: TF022
