Sunspots are dark areas on the sun that are visible because they are cooler in comparison to their surrounding region. This is not to say that they are cold, because they still have a temperature of around 6,700 degrees, but compared to the normal sun temperature of 10,000 degrees, they are cool. Sunspots are the result of the sun’s magnetic field welling up to the surface of the sun and causing the areas to be colder than the normal temperatures. It is similar to the cause of solar flares which are basically explosions on the sun’s surface.
A sunspot is an area on the sun that is cooler and darker than its surroundings.
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