Why do auroras appear in the sky near the North and South Poles?

The aurora has attracted attention since ancient times. According to the incomplete records of China from 30 B.C. to 1975 A.D., there were as many as 53 auroras.

Because the atmosphere near the North and South Poles is weak, charged particles will act to produce auroras.

Because of the influence of the earth's magnetic field, the sun's rays will shoot to the north or south pole, causing the aurora.

Among the forms of energy created by the sun, such as light and heat, there is one type of energy that is called"Solar wind"。The solar wind is the charged particles ejected by the sun, a powerful stream of charged subatomic particles that can cover the earth.

From the experiments of many physicists, it has been proved that the aurora is due to the role of charged particles in the thin atmosphere at high altitude.

This aurora is a natural phenomenon, and the sun is a large, hot sphere in which various chemical elements undergo nuclear reactions on its interior and surface, creating a powerful stream of charged particles that are emitted from the sun.

Studies have shown that aurora is due to the role of charged particles in the thin atmosphere at high altitude.

The vast area north of 40 degrees north latitude in our country.

It is a natural phenomenon that occurs in the Arctic and North Poles.

Because it is affected by the geomagnetic field. The flow of charged particles from the sun is also affected by the geomagnetic field.

The appearance of the aurora is actually related to the geographical location, and it also has a lot to do with the magnetic field, because the two poles of the earth are relatively large, so it is more likely to appear the phenomenon of the aurora, and many people will run to the determined area every year**, the beautiful aurora, the reason is that the earth is like a huge magnet, and its magnetic poles are near the north and south poles. The compass we are familiar with is affected by the geomagnetic field, always pointing to the north-south direction, and the flow of charged particles from the sun is also affected by the geomagnetic field, and approaches the north and south poles of the geomagnetic field in a spiral motion. So the aurora mostly appears in the sky near the north and south poles.

What happens in the South Pole is called the Southern Lights, and what happens in the North Pole is called the Northern Lights. Our country is in the northern hemisphere, so in our country you can only see the Northern Lights.

In fact, in layman's terms, the magnetic field of the earth's poles, therefore, particles from the sun are attracted to the near poles, so the aurora can only appear near the north and south poles of the earth.

The cause of the aurora.

Aurora is a process of mass discharge around the Earth. Charged particles from the Sun reach the vicinity of the Earth, and the Earth's magnetic field forces one of the vernal silver centrums to concentrate along the field line to the north and south poles. When they enter the upper atmosphere of the polar regions, they collide with and excite the atoms and molecules in the atmosphere, producing light that forms the aurora.

Frequently seen in the two ring-shaped zones around 67 degrees north and south latitudes, Fairbanks, Alaska, is known as the "Capital of the Northern Lights" for more than 200 days of the year. So the aurora can only be seen at the north and south poles of the earth.

We already know that the aurora is caused by charged particles in the thin atmosphere at high altitude, and under the action of the charged particle stream, the light emitted by various gases is also different, so there are various auroras of different shapes and colors, which are beautiful and spectacular.

Auroras mostly occur near the north and south poles, but rarely in the equatorial region, why is that? The reason is that the Earth resembles a giant magnet, and its magnetic poles are near the north and south poles. The compass we are familiar with is affected by the geomagnetic field, always pointing to the north-south direction, and the flow of charged particles from the sun is also affected by the geomagnetic field, and approaches the north and south poles of the geomagnetic field in a spiral widening side-motion mode.

Therefore, most of the auroras appear in the sky near the north and south poles. What happens in the South Pole is called the Southern Lights, and what happens in the North Pole is called the Northern Lights. Our country is in the northern hemisphere, so in our country you can only see the Northern Lights.

Auroras are caused by a stream of charged particles that collide with the atmosphere due to the pattern capture and cracking of the Earth's magnetic field. The Earth's magnetic field is strongest in the closed regions of the poles (the n pole is near the South Pole and the S pole is near the North Pole), so it is easier to see the aurora near the poles.

This is because of the Earth's magnetic field.

Causes. Aurora is a glow discharge caused by charged particles from the sun that excite (or ionize) molecules or atoms in the Earth's upper atmosphere.

The earth has a magnetic field. Magnetic field strength.

Varies with latitude, and at low latitudes, magnetic field lines.

Sparse and weak magnetic field strength. In the high latitudes near the poles, the magnetic field lines are dense and the magnetic field strength is strong.

When charged particles from the sun approach the Earth, the energetic particles turn to the polar regions with relatively strong magnetic field strength under the action of the Earth's magnetic field and gather there. Therefore, in the polar region, the charged particles interact strongly with the molecules or atoms of the upper atmosphere, so the aurora is commonly found in high magnetic latitude regions. Auroras often occur in the range of about 25° to 30° from the magnetic pole, and this area is called the aurora zone.

So the aurora can only be seen near the north and south poles.

Solar storms are charged particles, and we know that charged particles deflect when they pass through a magnetic field. CRT televisions work using this principle.

Electrons passing through the magnetic field will be deflected to the North Pole, and positively charged electrons will be deflected to the South Pole.

These particles bombard the air and ionize to produce auroras, which is the imaging principle of plasma television.