Do you know what are Auroras?
If you don’t know then don’t worry because today in this article, we are going to discuss what are Auroras.
Auroras
People who live far enough north (around 70 degrees north latitude) or far enough south ( about 70 degrees south latitude) can see some spectacular sights and displays in the sky on clear nights. Beautiful, large sheets of light seem to hang in the sky, rippling and wavering like curtains on your window.
The light flickers with shades of colours from frosty white to pale green and pink. A crackling sound usually accompanies them, and some people describe them as “giant fireworks display”.
In the northern-hemisphere, these are called ”auroras bore-alis” and in the southern they are “aurora australis”. The best displays of the auroras can be seen around the Hudson Bay region of Canada, north Scotland, southern parts of Sweden and Norway, South Australia and Srilanka.
It is believed that these lights are inside the earth’s atmosphere but what causes them comes through space from the sun. Edmund Halley, the English astronomer proved way back in 1716, that there is a relation-ship between the earth’s magnetic field and these lights.
The north and south magnetic poles of the earth are like the ends of a big magnet. They attract the particles of energy from the sun. These particles collide with other particles in the earth’s atmosphere, and produce sparks of shimmering, shivering lights.
Although fusion activities are continuously taking place in the sun which is a hot ball of fire, whenever there are many sunspots seen, the number of charged particles coming out from it is much larger. And more fireworks are coloured auroras are seen when this happens.
Conclusion
In conclusion, after reading all the above information we have provided, you will have a clear idea of what Auroras are.
