M101: A spiral galaxy in the Big Dipper


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Image processing: CCDoops + CCDSoft + Photoshop CS3.


Images taken: April 11, 2007, by Bart Reising & James Davis.

Telescope: Meade 12 in with f/5.7 focal reducer (f=68in).

Camera: SBIG ST-10 CCD

Exposures: 2 x 15 min red, 3 x 15 min green, 3 x 15 min blue (2 hours total).

Image processing: CCDoops + CCDSoft + CCDSharp + Photoshop CS.