The meteors we see are sometimes more and sometimes less. If you look closely, you will find more meteors in the middle of the night than in the middle of the night. What is the reason for this?
In general, the distribution of meteoroids in the space around the Earth is uniform, and the magnitude and direction of movement are different. If the earth does not revolve and rotate, and is still in the sky, then the number of meteors coming in from all directions should be roughly equal.
As the Earth revolves around the Sun at a speed of about 30 km/s, this has resulted in different numbers of meteors that have appeared at different times.
In the middle of the night, the meteors that the observer can see in the direction of the earth’s revolution are caused by the meteoroids whose speed is higher than the earth’s revolution and catch up with the earth’s intrusion into the atmosphere. In the middle of the night, the observers are facing the direction of the earth’s revolution. At this time, the meteoroids that the earth catches up, or the meteoroids that are on the way, can cause meteors when they break into the atmosphere, so there are more meteors. Especially when it is close to dawn, it encounters the most meteors. From the dawn to the noon, there are more meteors, but because it is daytime, the sun is strong, the sky is very bright, so the meteor can not be seen with the naked eye and optical telescope.