What is a Meteor Shower?

A meteor shower is an astronomical phenomenon in the night sky when many meteors are emitted from a so-called radiation point in the sky. These meteors are fragments of the universe called meteors, which project into the Earth's atmosphere at very high speeds when they orbit in parallel orbits. Most meteors are smaller than gravel, so almost all meteors will be destroyed in the atmosphere without hitting the earth's surface; fragments that can hit the earth's surface are called meteorites. Meteor showers that are particularly large or behave unusually are called "Meteor Outbursts" or "Meteor Bursts", and more than 1,000 meteors may appear per hour.

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Meteor shower is a so-called in the night sky with many meteors from the sky

In addition to the sun in the solar system,

A meteor shower (one flow per hour can be called a meteor shower) is a group of meteors that look like they burst out from a point in the sky, with a special astronomical phenomenon. The root cause of the meteor shower is

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Meteor Shower is generally thought to be due to

1

Outer space

Some meteors are relatively large, and they have no time to burn to ashes in the atmosphere, and fall to the ground as meteors .

Meteorites are divided into meteorites (mainly stone) and meteorite (mainly iron) due to the difference in composition.

There are many on earth

Season one

January

January

Meteor shower name:

Impact of meteor shower phenomenon

Although the mass of the meteor shower is very small (usually less than 1 mm), most of it is burned after entering the atmosphere. The meteor shower does not directly harm people living on the ground and will not affect people's daily life. However, due to the extremely high speed, meteor storms pose a threat to the safety of spacecraft in space, and also affect the ionosphere and other physical states in the upper layers of the earth's atmosphere. Large amounts of meteor dust are scattered into the Earth's atmosphere, providing additional centers of water vapor condensation, which will increase cloud cover and rainfall.

Meteor shower threatens humanity

1. May pose a threat to spacecraft. The Perseid meteor storm in 1993 caused the European Space Agency's Olympus satellite to be out of control after being hit by a meteoroid.

2. Meteorites may hit humans or livestock. It has not been reported that the human body was directly hit by a meteorite. In 1969, a meteor penetrated the roof in Australia.

3. The ionization effect caused by a large number of meteor clusters breaking into the Earth's atmosphere may cause abnormal telecommunications at long distances.

4. The reflection of radio signals by long ion beams formed by the shooting of meteors when the meteor appears can be used for high-frequency or very high-frequency communication with a range of up to 1,800 kilometers. Because meteor communication is not affected by solar activity or nuclear explosions, it has military significance.

Significance of meteor shower research

Observation and research of meteor storms have great practical and theoretical value for near-Earth space environment monitoring, prevention of space catastrophic events, ionospheric communication security, and in-depth understanding of the interrelationship, origin and evolution of solar system objects. To explore the mystery of the meteor storm, it is not enough to rely on the theoretical research of experts. It is necessary to rely on global professional and amateur observation networks to jointly observe. Through practice, we believe that long-term observation of meteors can obtain valuable data, can understand the distribution of meteors in the solar system space, provide useful clues for studying the evolution of the solar system, and ensure the safety of space flight. Meteor trails can be used for non-interfering radio communications, which is of great military significance. The convective sound, light, heat, and electromagnetic effects in the atmosphere can also be used to study the physical conditions of the earth's atmosphere. In the century since the 20th century, there have been several meteor storms, and China has no chance to meet them. However, in the first year of the 21st century, China successfully observed Leo meteor storms for the first time, and welcomed the 2004 fairy. The meteor shower is extremely prosperous, which has a positive significance for promoting China's astronomy research and carrying out scientific popularization education to the public. It is of great significance for human beings to understand the meteor bodies (groups) of the solar system and to understand how humans can sustainably develop in the cosmic environment.