JOHN CHUMACK / SCIENCE PHOTO LIBRARY JOHN CHUMACK / SCIENCE PHOTO LIBRARY
Close up of the surface of the sun, seen in hydrogen-alpha light, with sunspot (center right) and prominence (left), May 13, 2013. Photographed with a Lunt Solar LS60 Scope/LS50 Hydrogen Alpha Solar filter; DMK21 firewire camera, 2x barlow, 1/77 sec exp.
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