A filament filled solar disk, captured at 1600mm focal length. Recorded in turbulent seeing, this image is prepared from a single frame of video. This large image is shown at 66% of actual size. A positive version can be found here.

August 11, 2013/ captured with Coronado 90mm double stacked solarscope courtesy Dennis Zywiczynski, PGR Grasshopper Express 6MP camera

© Alan Friedman | all rights reserved