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Images / Astronomy / Solar Photosphere


Solar Photosphere
Solar Photosphere
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Image of an active solar region taken on July 24, 2002 near the eastern limb of the Sun. The image highlights the three-dimensional nature of the photosphere when seen at these large angles. The structures in the dark sunspots in the upper central area of the image show distinct elevation above the dark "floor" of the sunspot. The height of the structures has been estimated by Dr. Bruce Lites of the High Altitude Observatory to be between 200 and 450 km. The smallest resolvable features in the image are about 70 km in size. There are also numerous bright "faculae" visible on the edges of granules that face towards the observer. (Prof. Goran Scharmer/Dr. Mats G. Löfdahl/Institute for Solar Physics of the Royal Swedish Academy of Sciences)


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Posted by Kientad on June 5, 2011 at 9:55 am
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