Sunspot AR2715
Taken by Fernando Pérez on June 20, 2018 @
Valencia, Spain
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Details:
Along June 19th I was browsing the NASA SDO images and I was surprised to see how fast AR2715 came in. On next morning I set up the scope and imaged this beast with a 8" newton reflector at f/10 using Baader continuum filter and Nikon D40 DSLR, 1/500 sec. exposure at ISO200.
Photographer's website:
http://https://observatoriotorreconill.org
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