Sunday's rare annular solar eclipse has given solar scientists the opportunity to solve a surprising and unique mystery related to the Sun. Solar scientists around the world have now started analyzing it. It is a coincidence that when the sun is eclipsed corona is visible and when the corona is seen on the Earth, then the eclipse takes place, but the mystery of these two is still unresolved and a challenge for scientists. It is not easily visible under normal conditions but at the time of the annular eclipse, it is clearly visible when the moon covers the sun almost completely.
Corona is in the outer layer of its atmosphere away from the surface of the Sun. Despite this, it is hundreds of times warmer than the surface of the Sun, while it gets energy or heat from the surface of the same Sun. According to Aries scientist SB Pandey, scientists have not been able to solve the mystery till date. Millions of km from the hot surface. While the surface temperature of the Sun is around 5500-degree centigrade, the temperature of the corona situated more than one million km away is more than one million degrees centigrade.
The special thing is that even the density of corona is 10 million times less than the surface of the sun, yet having so much heat in it is a big puzzle. It is important to know here that the temperature of the Sun's core (centre) is up to 15 million degree centigrade, while on reaching the surface the temperature remains 5500-degree centigrade. The Iris mission was launched by the US Space Agency to unravel the mystery of the corona. From this NASA concluded that very high-speed energy particles (heat bombs) are released from the surface of the sun, which explode in the corona. This makes the corona warmer. But it has not been considered the only reason for Corona being overheated. However, with regard to Sunday's solar eclipse, scientists were very keen to get important information in solving this mystery, now it has to be studied.
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