Sun on May 28th, 2012
Sunspo0t 1492 with active region and filament. Note the detail in the penumbra and umbra. DMK 21AU618.AS webcam, Vixen 4-inch refractor f/10,Coronado Solarmax 90/BF30 H-alpha filter system. The 275 best of about 1000 frames were stacked and processed with Registax 6 and Adobe Photoshop CS5.
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