Xinhua News Agency, Tianjin, April 21 (Reporter Zhou Runjian) Astronomy science experts introduced that at 3 am on April 23, the Lyra meteor shower will usher in a great.
At that time, as long as the sky is clear, the Lyra meteor shower can be seen in our country and even all over the northern hemisphere.
The best observation time is from the evening of the 22nd to the morning of the 23rd.
On the beautiful west bank of the Milky Way, there is a well-known bright star Vega, which, together with some small stars around it, forms the constellation Lyra.
From April 15 to 29 each year, the meteor shower named after this constellation is active.
Song Yuanyuan, director of the Tianjin Astronomical Society and an astronomical science expert at the Tianjin Science and Technology Museum, introduced that the record of meteor showers in my country is earlier than that of other countries. There is a record of the Lyra meteor shower in Zuo Zhuan, which is also known in the world about the meteor shower. Earliest record.
Compared with meteor showers such as Gemini and Perseus, the flow of the Lyra meteor shower is much smaller, and the ZHR value at maximum (under ideal observation conditions, the number of meteors that can be seen per hour when the radiant is directly above the head) is in 18 and above.
Although the flow is not very large, there are occasional very bright bolides.
The astronomical forecast shows that this year's Lyra meteor shower will usher in a maximum at 3:00 a.m. on April 23.
"The radiant of the meteor shower is not far from the brightest star in the constellation Lyra and the fifth-brightest star in the night sky, Vega, which can be used to quickly locate the approximate location of the radiant. In the mid-latitudes of the northern hemisphere, the radiant appears shortly after dark. It will rise above the horizon and can be observed all night. The radiant is almost overhead before dawn, which is very beneficial to northern hemisphere observers. However, as the radiant rises, the rising last quarter moon will have a great impact on vision in the second half of the night. "Song Yuanyuan said.
Due to the limited "rainfall" of the Lyraids, it is good to see two or three per minute on average.
"Under the conditions of clear skies, friends who like meteor showers can observe the eastern sky from the evening of the 22nd to the morning of the 23rd. While waiting for the meteor shower, you can also observe and photograph the spring starry sky, such as the constellation Leo, The rising 'Galaxy Arch Bridge', etc." Song Yuanyuan reminded.