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Auroras

 

Auroras

Introduction:

•       An Aurora is a natural light display seen in the earth's sky, usually found in the high latitude (arctic and antarctic).

•       Auroras are a result of disturbances in the magnetosphere caused by solar winds.

•       These disturbances are sometimes strong enough to alter the trajectories of charged particles in both solar wind and magnetospheric plasma.

Colors of Auroras (We recommend seeing the presentation for more clearance below)

Auroras can be of a variety of colors:

•       Red: at very high altitudes

•       Green: at lower altitudes

•       Blue: at very low altitudes

•       Yellow

•       Pink

•       Ultraviolet: found in mars, Jupiter, and Saturn

 

Aurora Polaris.

•       Polar lights (aurora Polaris) are a natural phenomenon found in both the northern and southern hemispheres.

•       When charged particles from the sun strike atoms in Earth's atmosphere, they cause electrons in the atoms to move to a higher-energy state.  

•       When the electrons drop back to a lower energy state, they release a photon: light. This process creates beautiful aurora or northern lights.


 Aurora Polaris

It is divided into two parts:


i) Aurora Australis
ii) Aurora Borealis

 

Aurora Australis

•       Aurora australis (also known as the southern lights) in the southern hemisphere is the counterpart to the aurora borealis. 

•       In the sky, an aurora australis takes the shape of a curtain of light, or a sheet, or a diffuse glow; it most often is green, sometimes red, and occasionally other colors too.

 

Aurora Borealis

•       Aurora Borealis (also known as the northern lights) in the northern hemisphere counterpart to the Aurora Australis.

•       Aurora Borealis lighting displays may take the form of patches, shooting rays, arcs, diffused clouds, or streams of multi-colored light.

•        The colors can range from shades of blue, yellow, violet, red, and to the more commonly occurring pale pink and green.

Presentation With Colorful Images

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