What is the most famous constellation in which meteor showers occur?

Every year from165438+1October 14 to 2 1, especially around165438+1October 17, some meteors will generate from the direction of Leo. Astronomers now know that the mother comet that formed the Leonid meteor shower was comet Temple-Tuttle discovered in 1866.

This comet revolves around the sun, and at the same time, it constantly scatters its own substances. Just like spraying pesticides, it scatters many small particles in its orbit, but these small particles are not evenly distributed. Some places are sparse, while others are dense. When the earth meets thin particles, there will be fewer meteors, and when it meets dense places, there will be more meteors. These small particles are easily affected by various factors and slowly drift away, but when the comet returns, the earth will pass through the dense particle area it recently released. People on earth will see a large-scale meteor shower. Because of Temple? The period of Comet Tuttle is 33. 18 years, so the Leonid meteor shower is a typical periodic meteor shower with a period of about 33 years.

The history of human observation of Leonid meteor shower

In 902, Chinese astronomers recorded the Leonid meteor shower for the first time (the ancient astronomical record of China);

1799, the famous German scientist Humboldt recorded this phenomenon in Venezuela.

1833, a rare star rain appeared in North America. It is estimated that 240,000 meteors broke through the sky in 9 hours.

1866 Comet Temple-tatar was discovered and its orbit was determined, and star showers were observed in Europe.

1899, the expected star rain did not appear, and the public's confidence in the reliability of astronomical calculation was shaken;

During the period of 1933, there was still no report of star rain.

1966, spectacular star rain appeared again in the midwest of the United States. It is estimated that there are 654.38 million meteors falling from the sky every hour during the rush hour.

1998 Leonid meteor shower visited the earth again, which made most modern people truly realize this "king of popular rain".