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M51 LRGB Image

Color image composed of the luminance image here plus 5-7 each 3 minute unbinned R, G, and B images with RCOS 12.5 inch scope working at f6.75 and Meade 416XTE ccd camera. Compositing in MaxIm and stretching in Photoshop. Quality compared to the luminance image is pretty degraded! Very heavy dew resulted in slight dewing up of the primary mirror. M51 was also getting low in the sky as the series was progressing so the sequence was stopped before collecting the full set of images and some images had to be rejected during compositing. Some marginal images contributed the green cast at the top of the image.

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