Xinhua News Agency, Tianjin, April 20 (Reporter Zhou Runjian) Astronomical science experts introduced that at 20:40 on April 22, Beijing time, the Lyra meteor shower will usher in an extremely large meteor shower, when ten or twenty meteors will cross the sky every hour.

If the sky is clear, my country and even all parts of the northern hemisphere can witness the wonderful scene of the meteor shower "blooming" in the night sky.

  The formation of a meteor shower is generally a group of meteors formed by the fragments of a comet.

These meteor groups are affected by the gravity of the earth, enter the earth’s atmosphere, rub against the atmosphere, generate high temperature, emit strong light, and form a meteor shower.

When a meteor shower appears, the meteors are like shining ribbons, radiating from a certain point (radiant point) in the sky.

The appearance of meteor showers is regular, and they tend to reappear on roughly the same days every year, so they are also called "periodical meteor showers."

  Shi Zhicheng, a member of the Chinese Astronomical Society and director of the Tianjin Astronomical Society, introduced that on the beautiful west bank of the Milky Way, there is a well-known bright star-Vega, which forms the Lyra constellation together with some small stars around it.

From April 14th to April 30th each year, it is the active period of the meteor shower of this constellation.

  This year's Lyra meteor shower ushered in a great deal at 20:40 on April 22.

The day is the eleventh day of the third month of the lunar calendar. The first half of the night will be disturbed by moonlight. After the moon sets in the second half of the night, observation conditions are acceptable.

  Shi Zhicheng said that although the flow of the Lyra meteor shower is not large, there are many bright meteors and many fire meteors. Interested members of the public can try to watch the eastern sky in an unobstructed place.

He also reminded that due to the limited "rainfall" of the Lyra meteor shower, be patient when observing.