I have tested many exposures on this with different setups. This galaxy has a low surface brightness. I think that means that although it's bright, it's diffuse. Or something like that. This setup worked well and brought out more than I expected!

Click the image for a larger version

Pinwheel Galaxy

Taken with my ASI 183MC Pro, GSO 6" f/4 Newtonian, and GEM28 mount

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