The active are seen on Chromospere - AR2443.
Taken by Gabriel Corban on November 4, 2015 @ Bucharest, ROMANIA
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Here is the very complex structure of AR2443, seen on Chromosphere. A SkyWatcher ED 120 telescope , a DayStar Quark H-alpha filter and USB3 monochrome camera, from Point Grey Research Co. Using inverted false colors.
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