English: Messier 31 using L, RGB filters and a Ha filter assigned to red. Image was taken through a Takahashi FS152 telescope with an f6 focal reducer using an FLI PL16803 camera through L & RGB filters. There were 99 10-minute exposures for a total of 16.5 hours of imaging. The image was assembled in MaximDl and Photoshop CS.
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