What is Aurora Australis?
Aurora Australis is a light display that can be seen in the night sky above Antarctica during the winter. It is also referred to as southern lights . In the northern hemisphere, the same phenomenon is referred to as northern lights or aurora borealis . Northern lights can be seen in the Arctic Circle, through Northern Canada, Alaska, Russia and Scandinavia. Australis is the Latin word for the south, while borealis is a Greek word for the northern wind. Aurora Australis quite literally means dawn or light south. Both Aurory have similar properties and differ only in where they can be displayed.
Aurora is a belt of colored lights that can be seen in the sky. The light is caused by charged particles, electrons and protons that collide with other molecules in the upper atmosphere around the ground. It is mainly collided with nitrogen and oxygen. The part of the energy that results from these collisions is emitted as light or photons. When the charged particles are collided with oxygen, either greenLike or dark red light. Green yellow is most often seen of them. Nitrogen collisions cause blue light to display as part of Aurory.
The charged particles come from the sun and are referred to as solar wind. Due to the continuous reactions that occur in the sun, these particles are constantly released and leave the sun at a speed of 300 to 1,000 kilometers per second, or about one million miles per hour. At these speeds, particles can reach the ground in a few days.
Earth's magnetic field will deflect these particles when they reach the upper atmosphere. The charged particles are limited by the magnetic field lines and travel on the ground. Electrons and protons travel on the terrain lines towards the north and the South Magnetic Poles of the Earth. At the poles, the magnetic field is closer to the ground surface, allowing charged particles to interact with other molecules in the atmosphere.
the best time to view AUROry is during a high level of activity in the sun. The higher the levels of the activity, the more charged particles are released and sent to the ground. Aurora Australis can only be seen between March and September, because the South Pole has sunlight for 24 hours a day for the rest of the year. When Aurora Australis is visible, it usually takes about 15 minutes to half an hour. It can always occur for two to three hours.