M51 and fuzzies

I decided to try to maximize detail by collecting a large quantity of Luminescence data and then applying strong deconvolution to the areas of high signal to noise.  I also decided to try out Mure denoise, a Pixinsight routine that reduces camera noise.  The final result is an LRGB and represents just over 17 hours integration time. 

I hadn't noticed before the rather strangely shaped fuzzies in the backgroud - have a look at the annotated version for IC4278 and the triangular shaped galaxy PC2292105.