As the process of fusion occurs inside the sun, it spews high-energy particles (ions, electrons, protons, neutrinos) and radiation in the solar wind. When the sun's activity is high, you'll also see large eruptions called solar flares and coronal mass ejections. These high-energy particles and radiations get released into space and travel throughout the solar system. When they hit the Earth, they encounter its magnetic field.
The described activity causes the generation of the Aurora Borealis and the Aurora Australis.
The sun
Solar Winds
If you spotted an aurora that lasted several nights, it could indicate increased solar activity such as a geomagnetic storm caused by solar flares or coronal mass ejections from the sun. These events can lead to an extended period of heightened auroral activity in the Earth's atmosphere.
The aurora borealis (northern lights) and aurora australis (southern lights) are caused by charged particles from the sun interacting with the Earth's magnetic field and atmosphere. When these particles collide with atoms and molecules in the atmosphere, they emit light, creating the colorful displays seen in the sky.
The described activity causes the generation of the Aurora Borealis and the Aurora Australis.
The sun
Solar Winds
An aurora occurs when charged particles of the sun excite the electrons of atoms in Earth's atmosphere. The moon does not have an atmosphere.
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.
An aurora appears in the sky when charged particles from the sun interact with the Earth's magnetic field, creating colorful light displays in the atmosphere.
The aurora does not work to a time table. Auroral displays occur following an eruption on the sun. A stream of protons is ejected from the sun and travels into space at very high speed. When they approach the earth, our magnetic field diverts them towards the (magnetic) north and south poles. When they enter the ionosphere they interact with the gases up there. This is what causes the glow of an aurora. When these events will occur is something that we don't (and can't) know. All we can say is that the more sunspot activity there is on the sun, the more likely an aurora is. The aurora is spectacular at night, but not bright enough to be seen in daylight. You are therefore more likely to see one in winter because the nights are longer.
An aurora appears in the night sky when charged particles from the sun interact with the Earth's magnetic field, creating colorful light displays near the poles.
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.
If you spotted an aurora that lasted several nights, it could indicate increased solar activity such as a geomagnetic storm caused by solar flares or coronal mass ejections from the sun. These events can lead to an extended period of heightened auroral activity in the Earth's atmosphere.
Usually about one hour to two hours. A very faint Aurora lasts only a few minutes. Some auroras which are very strong otherwise known as "aurora storms" last for days, fading away and returning. It all depends on our sun's activity.
Aurora are generated when magnetic storms from the sun hit the earth's atmosphere and interact with it. Both polar regions experience aurora: Aurora Australis occurs in the Southern Hemisphere, and Aurora Borealis occurs in the Northern Hemisphere.