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Aurora Borealis and Aurora Australis

The Aurora Borealis and the Aurora Australis, sometimes called The Northern and Southern Lights, are natural light displays in the sky, usually observed at night, particularly in the polar regions. Auroras are most visible closer to the Poles due to the longer periods of darkness and the magnetic field.

689 Questions

If there were not a hole in the Ozone could the Northern Lights exist as they do?

Yes, the presence of the ozone hole does not directly impact the visibility of the Northern Lights. The Northern Lights, also known as auroras, are a natural light display in the Earth's sky that occur near the polar regions when charged particles from the sun interact with the Earth's magnetic field. The presence or absence of an ozone hole does not affect this phenomenon.

What time does the northern lights come out?

The Southern (or Northern) Lights are caused by particles ejected from the sun by solar flares, getting trapped in the ionosphere and radiating. They happen all the time, but the conditions have to be right for them to be visible.

Have the northern lights ever been seen in Mississippi?

It is very rare for the northern lights (aurora borealis) to be seen in Mississippi, as they are typically visible at higher latitudes closer to the North Pole. However, during rare and strong geomagnetic storms, it may be possible to see the northern lights in more southerly locations like Mississippi.

What layer does not contain the northern lights?

The Northern Lights, or Aurora Borealis, occur in the thermosphere and exosphere layers of Earth's atmosphere. They are typically observed between 60 and 400 kilometers above the Earth's surface. The stratosphere and troposphere layers do not contain the Northern Lights.

Can you see the northern lights from Denmark?

It is rare to see the northern lights in Denmark due to its southern location. The best chances of seeing the northern lights are in locations closer to the Arctic Circle where they are more commonly observed.

Do auroras occur on other planets?

Auroras can occur on other planets and have been observed on several of them including Venus, Jupiter and Saturn.

According to the Geophysical Institute of the University of Alaska auroras can form on any planet that has an atmosphere and is bombarded by energetic particles. As such all planets in our solar system are subjected to energetic particle bombardment due to the polar wind so any that have a dense enough atmosphere will have the potential for the formation of aurora. Further to this, they also state that the intensity of the aurora will be dependent on the strength of the planets magnetic field.

According to NASA some of the largest auroras occur on Jupiter (which has auroras larger than the diameter of Earth) and it is unusual in that solar winds are not required as Jupiter (and its moon Io) is able to create its own charged particles and an intense electric field at it's poles.

Currently NASA believe that volcanic activity on Jupiter's moon (Io) ejects oxygen and sulphur ions (O+ and S+) into Jupiter's spinning magnetic field. It is the rotation of this magnetic field that creates the very high electrical charge at Jupiter's poles.

This interaction of the electric field and the charged particles from Io ultimately causes the majority of Jupiter's aurora.

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What phenomenon sometimes known as the northern lights?

The Aurora Borealis - Northern Lights (and the southern hemisphere's Aurora Australis) are caused by the interaction of Earth's magnetic field with the flow of highly-charged particles from the Sun (known as the "solar wind"). Collisions of these particles with atmospheric molecules causes energy emission as visible light.

Auroras are normally confined to polar regions, which are nearer the magnetic poles.

When magnetic storms occur on the Sun, when electrically charged particles (ions) from the corona and solar flares are added to the solar wind produced by the corona, the charged particles are accelerated by the Earth's magnetic field interact with the gases in the upper atmosphere and cause the gas molecules to emit light. Electrons in the molecules are excited to higher energy levels and then release photons when the fall back to lower energy levels.

A:When the ions from the sun first collide with air particles, each causes a different reaction, and each reaction causes a different color to explode. Neutral nitrogen particles will create a

purplish pink color, while ionic nitrogen transforms into a brilliant blue. If an ion crashes

into oxygen in a lower altitude, it becomes the most common aurora, a yellowish-green

color. If it however, collides with oxygen at a high level, it will create the rarest blood red

aurora.

A:An Aurora Australis or an Aurora Borealis occurs when streams of particles from the sun's solar winds hit the earth's atmosphere at an angle (as can only happen at the poles). These particles interact with the edges of the earth's magnetic field and when they collide with the gases in the ionosphere, the particles glow creating curtains of blue, green and magenta.

An aurora is sometimes accompanied by a crackling sound.

A:Auroras are caused by radiation from the sun, called solar wind, interacting with Earth's magnetic field. Since the magnetic field is strongest near the poles, that's the region where most auroras occur. A:Solar charged particles from the sun, which are normally radiated into space, sometimes get caught in the Earths magnetic field as they come into the upper atmosphere they react with other gases and produce coloured lights A:Auroras are caused by Solar Winds colliding with charged particles in the upper atmosphere.

Auroras also occur on other planets in our solar system. According to the Geophysical Institute of the University of Alaska:

If a planet has an atmosphere and is bombarded by energetic particles, it will have an aurora. Since all planets in our solar system are embedded in the solar wind, all planets are subjected to the energetic particle bombardment, and thus all planets that have a dense enough atmosphere will have some sort of aurora

They also state that the intensity of the aurora will be dependent on the strength of the planets magnetic field.

According to NASA some of the largest auroras occur on Jupiter (which has auroras larger than the diameter of Earth) and it is unusual in that solar winds are not required as Jupiter (and its moon Io) is able to create its own charged particles and an intense electric field at it's poles.

Currently NASA believe that volcanic activity on Jupiter's moon (Io) ejects oxygen and sulphur ions (O+ and S+) into Jupiter's spinning magnetic field. It is the rotation of this magnetic field that creates the very high electrical charge at Jupiter's poles.

This interaction of the electric field and the charged particles from Io ultimately causes the majority of Jupiter's aurora.

A:Auroras are caused by a stream of charged particles (mostly electrons, but some protons and a few other things) from the Sun getting trapped in Earth's magnetic field and interacting with the gasses in our upper atmosphere. The charges electrify the nitrogen and oxygen in the air and make them glow like a neon or fluorescent light bulb. When photons crash into gas nuclei, electrons can take up that energy. The energized electrons use the extra energy to jump out to higher energy levels around their parent nuclei. The atoms are said to be ionized. The energized electrons then release the extra energy and return to their original orbitals. The released energy is electromagnetic energy - it's light.

When these particles hit the upper atmosphere, they react with the atoms and molecules of the air and cause them to glow with the characteristic colours associated with the aurora.

A:They only appear when the Sun sends out solar wind and when they hit the Earth's magnetic field they are deflected towards the magnetic poles. As the high speed particles from the Sun interact with the gases in the upper atmosphere they cause fluorescence as the outer electrons of the gas molecules are bumped into a higher quantum level. They then jump down to their original quantum level and in doing so emit a photon of light. Millions of these jumps make a spectacular light show. This also happens on a few other planets in the Solar System. A:It is formed because of the magnetic field of earth. As charged particles from the sun collide with our magnetic field it makes light.

Produced by Collision of charged Particles from Earths Magnetsphere.

The liquid iron core present at the interior of our earth has created a magnetic field around it.Till then which has been subjected to massive bombardment with high energy solar radiation & other form of harmful cosmic rays. All these high energy charged particles are get trapped in van Allen radiation belts & in addition get reflected by the earth's magnetic field towards the pole where these particles interact with the earth's atmospheric components in form of a visible energy called the northen lights.

Is the Aurora Borealis found in the mesosphere?

The Northern lights can be seen round the magnetic North pole of the Earth in the Arctic Circle. High energy particles of the Solar wind are guided to Earth down field lines and excite air molecules to glow. The Aurora Australis occurs over Antarctica

Does zeeman effect prove that there are high magnetic fields in sunspots?

Observations show that the spectral lines of light from sunspots are split. This is consistent with them having high magnetic fields (and it's even possible to estimate how high by the degree of splitting), because that's what the Zeeman effect is: the splitting of electronic energy levels (which in turn affects the spectrum of transitions involving those energy levels) by an external magnetic field.

The effect itself doesn't directly have anything to do with sunspots particularly, and I'm not certain that I'd use the word prove, but the splitting combined with knowledge of the Zeeman effect is pretty substantial evidence that sunspots are correlated with magnetic flux.

What produces the Auroras?

Auroras are produced when charged particles from the sun (solar wind) interact with the Earth's magnetic field and atmosphere. This interaction causes the particles to emit light, creating the colorful displays known as auroras.

How do you go to aurora borealis?

Where the northern lights are depends on the position on an oval on the top of the earth. This oval moves through the day and night due to magnetic sentres in the earth. Most northern light research is done in Norway, and this is probably the best place to see it. But it can also be spotted in places like Alaska and norhern Russia.

The next norther light high is expected to be in 2013. So if one visits northern Norway one cold and clear winter night in 2013, you will mosy likely see it.

As there ever been an aurora in Louisiana?

Yes, my wife and I saw the aurora borealis on two consecutive evenings while we were on our nightly walk in a fairly dark subdivision just South of Beau Chin in Mandeville, Louisiana. I am not sure if it was in 1988 or 1989. I was searching online to try to find the date when I saw the question post. It took a couple of days before news sources confirmed it was the aurora borealis, as there was some speculation that the government/military were performing some kind of atmospheric test.

What are the Aurora Arcticus called?

The Aurora Arcticus is also known as the Northern Lights or Aurora Borealis. It is a natural light display in the Earth's sky, predominantly seen in high-latitude regions close to the Arctic and Antarctic.

How far north do you have to be to see the northern lights?

Yes and No. Northern lights are seen in the north, the same phenomenon (Southern Lights - Aurora Australis) can be seen in the far south but so few people live there that they are not as famous.

The charged particles from the Sun hit the Earth's atmosphere and cause a current of particles to flow along the earth's magnetic field lines into the polar regions (north and south.)

What time of year do the northern lights start and end?

The northern lights can be seen starting in late August and continue through April, with the peak viewing times typically being in the fall and winter months. They are most visible in areas near the Arctic Circle during the darkest nights of the year.

Are northern lights an example of electronic principles?

Yes. Northern lights reflect the principle of florescent Lights. Charged particles in the Magnetosphere collide with atoms and molecules in the atmosphere. This energizes the atoms and molecule's electrons the relaxation of the electrons emit the Northern Lights.

Different colors indicate different atoms or molecules.

The Aurora borealis is caused by the what?

The Aurora borealis, also known as the Northern Lights, is caused by the interaction between charged particles from the sun and the Earth's magnetic field. When these particles collide with gases in the Earth's atmosphere, such as oxygen and nitrogen, they produce the colorful light display that we see in the sky.

What is The Aurora that is visible in the southern hemisphere?

The Aurora Australis, also known as the Southern Lights, is a natural light display in the Earth's southern hemisphere. It occurs when charged particles from the sun interact with the Earth's magnetic field and create stunning displays of light in the sky, similar to the Northern Lights in the northern hemisphere.

Who discovered aurora borealis?

There has been much debate about who discovered the auroras, but ancient Chinese and Greek people have been studying these natural wonders for years, and the ancient Eskimos and Scandinavians have been known to reference them as early as 700 AD. The person that actually brought everyone's attention to the auroras was Benjamin Franklin, even though a French astronomer Pierre Gassedni was credited for given the name of the aurora borealis (the Roman goddess of dawn, Aurora, and the Greek name for north wind, Boreas) in 1612.

Light in the northern sky caused by solar particles interacting with the atmosphere?

The light in the northern sky is called the aurora borealis, or Northern Lights. It occurs when solar particles collide with the Earth's atmosphere, creating a dazzling display of light typically seen in higher latitudes near the poles. The particles ionize gases in the atmosphere, releasing energy in the form of colorful light.

What colours are the northern lights?

The colors of the Northern Lights can vary, but they typically include shades of green, pink, purple, and blue. These colors are produced by different gases in the Earth's atmosphere interacting with solar particles.

Are the northern lights real?

Yes, the northern lights, also known as aurora borealis, are a natural phenomenon that occur in the polar regions when charged particles from the sun interact with the Earth's magnetic field. They create colorful displays of light in the sky, usually seen at night.

What is vegetation zone for the northern lights?

The vegetation zone for the northern lights, also known as the aurora borealis, includes regions closer to the North Pole where the phenomenon can be observed. These areas typically encompass boreal forests, tundra, and arctic vegetation that are found in high latitudes such as Alaska, Canada, Scandinavia, and Russia. The aurora borealis is often visible in these regions due to their proximity to the Earth's magnetic pole.

Where can Aurora Borealis be seen?

The Aurora Borealis is a display of colored lights in the sky, also called northern lights, caused by the interaction of particles from the sun with the upper atmosphere near the North Pole. A similar display, called the Aurora Australis, occurs in the atmosphere above the South Pole.