Essay On Aurora

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What is Aurora? It is an occurance whereby collisions between electrically charged particles released from the sun that enter the earth’s atmosphere colliding with gases such as oxygen and nitrogen which produces an incredible light show. You can also see the lights around the magnetic poles of the northern and southern hemispheres. Auroras that occur in the northern hemisphere are called ‘Aurora Borealis’ or ‘northern lights’ and auroras that occur in the southern hempishere are called ‘Aurora Australis’ or ‘southern lights’. Both Auroras can be seen in the northern or southern hemisphere, in an irregularly shaped oval centred over each magnetic pole. Scientists have learned that in most instances northern and southern auroras are mirror-like…show more content…
At the lower edge of the auroral curtain, the density of molecules does not permit oxygen to emit light; therefore a purplish-pink color comes from a combination of red and blue in the geomagnetic substorms that are fired by high levels of energy flaring Earthward. Rainbow Auroras Auroras come in all differing shades of a night rainbow. When molecules and atoms of the upper atmosphere collide, struck by high-energy electrons, they produce differing colors in auroral forms. Oxygen atoms produce brownish-red and green light. Nitrogen can appear like bluish light and sometimes as almost pink in coloring. Helium can look like purple light. Neon can give off an orangish flare with rippled edges. Activity of solar winds also plays a part of the colors and intensity of auroras. Green Auroras The Aurora Borealis is centered around the geomagnetic North Pole. Green is the most common coloring for the gorgeous natural auroral formations. The green colorings are produced from oxygen and happen up to 150 miles in altitude. Also the middle of auroral curtain is greenish-white. The green tinted snaky bands and the shifting curtain seem to be painted across a large extent of the northern sky on clear, frigid nights. These breathtaking formations in the polar sky are highly influenced during periods of solar

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