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Image of M33 a face-on spiral galaxy in Triangulum which is about 3 million light-years away, i.e. it's in our "Local Group". It is sometimes known as the Pinwheel galaxy - together with two other face-on spirals. Because of its relative proximity it has a large angular diameter, much greater than the field of view with my camera/telescope combination. The image consequently shows only the central regon.
Taken using the Atik One 6.0 OAG CCD camera on Altair 10" RC telescope. Luminance exposure 80 minutes and R,G,B exposures 6 minutes. Processed in Maxim DL to create the LRGB composite then in Photoshop for the final image.