Then copied it down on the paper to show the priest. When you step on it, it will still burn your feet. But, it is not as bad as the rest of the sun. This was his first open support for the Copernican system suggesting that the sun itself rotated as well as, that the Earth went around the sun. He disagreed that the spots were tiny planets orbiting the Earth as suggested by the German Christoph Scheiner, a Jesuit observer.
Sunspots are dark areas that move across the surface of the sun, usually lasting a few weeks.
They are the result of diturbances in the suns incredibly powerful magnetic feild. They are 20,000 kilometers or more across.