Thursday, October 11, 2012

Active Area with Trailing Filaments

Double-stacking really brings out the dark filaments on the sun's surface, as this image illustrates:






The "tweaking" of the SolarMaxII etalon is very subtle; I've found that very small movements (around a 16th of an inch in rotation) really do make a difference to the final image.

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The Horsehead Nebula

This image of the Horsehead Nebula consists of just over 4 hours of total integration time. Stacked and processed in Siril, GraXpert, Affini...