M33 reprocessed: combining results of two cameras

[michael.h.f.wilkinson]

I had a go at reprocessing the data obtained last Tuesday. I had one hour of data with the Canon EOS 550D, and one hour from the ASI183MC, both taken with the same scope (APM 80mm F/6 with 0.6x reducer. I merged the data with Astro Pixel Processor, cropped the result, and tweaked the output with GIMP. Quite pleased with the result, which is definitely less noisy than each of the single outputs. The ASI183MC clearly has the edge in sensitivity and resolution, but the additional hour's worth of data from the 550D definitely helps.

Still some gradients there. Next time I will see that I get the flats sorted out properly

S