k Sunspots Sunspots dark areas on the surface of the Sun. Sunspots are areas of magnetic activity that are cooler than the rest of the Suns surface. They range in size from hundreds to thousands of kilometres across. The darkest regions nearly vertical magnetic fields are the umbras, surrounded by penumbras bronze regions. The yellow background consists of convection cells called solar granules, each around 1000 kilometres across. This sunspot part of AR 1793, developed this elongated shape after its appearance several days earlier C0193779. It was observed with a Baader white light filter on 20 July 2013. Stock Photo - Afloimages
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Sunspots Sunspots dark areas on the surface of the Sun. Sunspots are areas of magnetic activity that are cooler than the rest of the Sun s surface. They range in size from hundreds to thousands of kilometres across. The darkest regions nearly vertical magnetic fields are the umbras, surrounded by penumbras bronze regions . The yellow background consists of convection cells called solar granules, each around 1000 kilometres across. This sunspot part of AR 1793 , developed this elongated shape after its appearance several days earlier C019 3779 . It was observed with a Baader white light filter on 20 July 2013.
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Sunspots

Sunspots (dark areas) on the surface of the Sun. Sunspots are areas of magnetic activity that are cooler than the rest of the Sun's surface. They range in size from hundreds to thousands of kilometres across. The darkest regions (nearly vertical magnetic fields) are the umbras, surrounded by penumbras (bronze regions). The yellow background consists of convection cells called solar granules, each around 1000 kilometres across. This sunspot (part of AR 1793), developed this elongated shape after its appearance several days earlier (C019/3779). It was observed with a Baader white light filter on 20 July 2013.

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