A first attempt at M51

Through March and into April I attempted to image Messier 51 with my Skywatcher ED80 and Atik 314L+ (mono).

I ended up with twenty-six five-minute luminance exposures and nineteen three-minute exposures for each of red, green and blue for a total of a fraction over five hours of imaging time.

This is the processed luminance data, scaled down to half size:

I was pretty pleased with that, but my final colour LRGB image I think needs more work. Partly I suspect it’s because I captured the colour data at 2×2 binning so it needed to be scaled up to match the luminance. Partly it’s my lack of skill at processing. I shall definitely return to this another time…

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