An Aurora is a light display in the sky which is natural particularly in the high latitude regions. It is caused by the collision of energetic partials with the atoms in the high altitude. Charged particles are directed to Earth by the Earth magnetic field into the atmosphere, they originate in magnetosphere and solar wind and on Earth.
The effect is known as Aurora Borealis or Northern Lights usually occurs in Northern latitudes. In southern Hemisphere, its called Aurora Australis (or the Southern Lights). Aurora is named after the Roman goddess of dawn where as Boreas is Greek name for the north wind. Northern lights have different names i.e Cree call this phenomenon the "Dance of Spirits". Aurorae also occurs in Other Planets as well which is almost similar to the Earth's aurora and they are visible near Planet's magnetic poles.
Auroras is a result of emission of photons in the earth's upper atmosphere above 80 km when atoms of Nitrogen and Oxygen return from excited state to ground state and ionized nitrogen atoms regaining an electron. One of the most spectacular in recent history auroras that was resulted from the "great geomagnetic form" on 28 August and 2 September 1859. Solar wind flowing past the Earth is the ultimate energy source of the Aurora. It has been also proved that Aurora Borealis produces static-like sound which comes from the solar particles associated with creating aurora.
The effect is known as Aurora Borealis or Northern Lights usually occurs in Northern latitudes. In southern Hemisphere, its called Aurora Australis (or the Southern Lights). Aurora is named after the Roman goddess of dawn where as Boreas is Greek name for the north wind. Northern lights have different names i.e Cree call this phenomenon the "Dance of Spirits". Aurorae also occurs in Other Planets as well which is almost similar to the Earth's aurora and they are visible near Planet's magnetic poles.
Auroras is a result of emission of photons in the earth's upper atmosphere above 80 km when atoms of Nitrogen and Oxygen return from excited state to ground state and ionized nitrogen atoms regaining an electron. One of the most spectacular in recent history auroras that was resulted from the "great geomagnetic form" on 28 August and 2 September 1859. Solar wind flowing past the Earth is the ultimate energy source of the Aurora. It has been also proved that Aurora Borealis produces static-like sound which comes from the solar particles associated with creating aurora.
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