Tuesday, May 24, 2016

A Cosmic Pinwheel

This is a heavily-cropped image of M101, the Pinwheel Galaxy,
taken last night through significant sky glow and haze. I used the 8 inch f/4 Newt with no filtration. This is a stack of 15 images x 30 seconds at a gain of about 20 db. This is an unbinned image. Tracking was less than perfect, but the final result isn't too bad. The Universe can really pull detail out in mediocre conditions.


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