This cropped image obtained 07-05/06-2016 through RVO's Megrez 80mm refractor with Orion field-flattener lens, using a Baader-modified Canon XSi DSLR and BackyardEOS image-acquisition software – 19 carefully selected and stacked 300-second luminance frames combined with multiple dark, flat and bias calibration frames shot at ISO 1600 and totaling more than 200 minutes (~95 minutes effective luminance) were used to create this image; optics driven by the Losmandy G-11 mount equipped with Ovision's precision RA worm gear, guided with a ZWO ASI 120MM Monochrome CCD camera through a 50mm guidescope using PhD2 guiding software and post-processed with DeepSkyStacker, Photoshop CS3, AstronomyTools ProDigital actions and NeatImage noise reduction s/w.

 

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To access additional information about this complex region of the constellation Ursa Major please click the above image or this text.

 

[image copyright Rabbit Valley Observatory/Willis Greiner, 2016 -- all rights reserved]