China News Service, Nanjing, January 17 (Reporter Yang Yanci) According to the news from the Purple Mountain Observatory of the Chinese Academy of Sciences on the 17th, the "minimum full moon" in 2022 will appear in Tianyu on the 18th.

As long as the weather is fine, the public can look up to see the beauty of a miniature full moon in the sky.

　　This is the last full moon in the Year of the Ox in the lunar calendar, and the first full moon in 2022.

　　According to astronomers, full moons vary in size, including "super moons" and "minimum full moons."

This is because the moon orbits the earth in an elliptical orbit, and the distance between the two is not constant.

　　Generally speaking, the average distance between the Earth and the Moon is about 384,400 kilometers.

The angle between the moon's perigee and apogee from the Earth is 180 degrees.

At apogee, the moon is about 405,500 kilometers from the earth; at perigee, the distance between the two is about 363,300 kilometers.

　　Therefore, there are "big moon" and "small moon" as seen from the earth.

The so-called "supermoon" is the perigee full moon; and the "minimum full moon" is the apogee full moon.

　　According to astronomical calculations, at 17:00 on January 14, 2022, Beijing time, the moon will move to the apogee, and the moon's apparent diameter will be the smallest at this time; at 7:48 on January 18, the full moon moment, the moon will be in the "most round" state, which is also The "minimum full moon" of the year.

　　After sunset on the 18th, a bright miniature moon will rise from the southeast.

Experts remind that the public who want to appreciate the "minimum full moon" may wish to wait quietly for the moon to rise to a certain height, that is, about two hours after sunset is the best time to appreciate the moon.

　　As far as viewing the full moon is concerned, you don't need much special equipment, you can just see it with the naked eye.

As long as the sky is clear and the air is clear, interested members of the public can choose a place with a wide view and quietly enjoy the last full moon before the Lunar New Year this year.

(Finish)