Spiral galaxy M101 in Ursa Major

Posted by Behyar
on Wednesday, June 04, 2014

Shot over two nights May 30-31, 2014.

DSI RC10C, fl 1867 mm @ f/7.3
FLI ML6303 camera guided by SBIG ST-i via the MMOAG
All unbinned for an image scale of 1 arcsec/pix
3 Hours of Lum, 1 Hour of RGB each in 15 min subs @ -20C

Captured with Maxim/DL, processed with CCDStack/PS CS5

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