When will there be an aurora? When will the aurora appear?

Scientifically speaking, the aurora occurs all year round, but it is difficult to see with the naked eye in the summer or during the day.

According to the data, the aurora appears in two halos around 67 degrees north and 67 degrees south, and Fairbanks, Alaska, is the best place to see it from a global perspective. Known as the capital of the Northern Lights, the Northern Lights appear on more than 2 days a year.

Depending on the geographical distribution of countries around the world, the Northern Lights can be seen in Iceland, Finland, Sweden, Norway, Canada, Alaska and Argentina.

Mohe is the best city in China to see the Northern Lights, and it is easy to see them about nine days before and after the summer solstice every year.

There are three conditions for the formation of auroras: the atmosphere, the magnetic field, and high-energy charged particles. All three are indispensable.

How it works: Auroras are a process of large-scale electrical discharge around the Earth. Charged particles from the Sun reach the vicinity of the Earth, and the Earth's magnetic field forces a portion of them to concentrate along the field lines 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. The place that is often seen is in Alaska, within two ring bands around 67 degrees north and south latitudes.

There are more than 200 days of aurora in Fairbanks throughout the year.

Hence the name "Northern Lights."

capital". So the aurora can only be seen at the north and south poles of the earth.

Magnetic field lines of the Earth's magnetosphere.

Carry the solar wind.

The energy enters the Earth's interior, which in turn drives the geomagnetic field.

of the formation. In addition to the conductors of the Earth's interior, there is also an atmosphere on this magnetospheric magnetic field line closed loop.

of the ionosphere - this weak conductor of electricity. When the solar wind is strong, the energy of the magnetic field lines encounters the magnetic inductance of the earth's interior, and a lot of energy cannot be consumed, so an aurora is formed in the ionosphere.

When can you see the aurora?

Among the regions where the aurora borealis are abundant, Northern Europe is the most eye-catching destination. Northern Europe is located in the Arctic polar region, the aurora phenomenon has all year round, but the summer aurora can not be seen by the naked eye, every year from September to April of the following year, it is the high incidence period of the aurora, and it is also the most suitable period for the aurora. Northern Norway is the best place in the world for the Northern Lights in terms of location, temperature comfort and chances.

In Mohe, China, the Northern Lights are most visible during the nine days around the summer solstice, although they may appear all year round. Because there are often clear skies around the summer solstice, when there is no cloud barrier between the North Pole and the Mohe, people can see the magnificent Northern Lights. Generally speaking, the aurora is usually observed at night around the summer solstice every year, and even if the aurora appears during the day, it is not easy to see the aurora because the sunlight is bright during the day and the aurora is small.

Auroras generally appear near the north and south poles. There are three conditions for it to be generated: atmosphere, magnetic field, and high-energy charged particles.

When the conditions are met, the encyclopedia can be found, and there is no need to ask questions.

When the sun spews a large number of charged ions to the earth, they will emit light and form auroras when they are affected by the earth's magnetic field.

Auroras are caused by charged particles in the thin atmosphere at high altitude, and under the action of the flow of charged particles, 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 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.

Auroras are a phenomenon produced by the interaction of a stream of high-energy charged particles from the Sun with the Earth's magnetosphere. When these charged particles enter the polar regions of the Earth's magnetic field, they collide with the gas molecules in the Earth's atmosphere and excite light. These rays take on a variety of different colors and shapes under the action of the earth's magnetic field, forming the beautiful aurora.

Intense activity on the sun, such as limb solar storms and coronal mass ejections, will release a large number of charged particles into the solar system, some of which will be bound by the earth's magnetic field to form radiation belts around the earth, and the other part will flow along the magnetic field lines in the direction of the earth's magnetic poles, when these charged particles flow through the atmosphere, they will collide with gas molecules, excite various colors of light, and form auroras.

Since the position of the Earth's magnetic poles is not fixed, but constantly changing, the appearance of auroras is also irregular, but when the solar activity is intense, the frequency and intensity of the aurora will increase. The aurora is a mysterious and beautiful natural phenomenon that brings endless imagination and interest in exploration.

Aurora is a brilliant and colorful luminescent phenomenon that occurs when a stream of charged particles (solar wind) enters the Earth's magnetic field, and a brilliant and beautiful glow appears at night in the high altitude near the north and south poles of the Earth. Auroras are the most beautiful and incredible natural phenomena that people can see, and they are the only solar-terrestrial space phenomenon that can be seen with the naked eye on the ground during solar storms. The more spectacular the aurora, the more intense the solar eruption.