M83 – The Southern Pinwheel Galaxy is a barred spiral galaxy approximately 15 million light-years away in the constellation Hydra.
I had shot this target before in July of last year at astro fest with 1 hour of integration time. But the subs were pretty short at just 2.5 minutes.
This time I imaged just shy of 2 hours, with much longer subs of 10 minutes at the end of the night.
Comparing the two images I would have to say this one had a lot more noise but is much sharper. At 10 minutes the noise from my dslr is crazy. I should definitely try bumping up my dither amount.
SW ED100 Doublet refractor
HEQ5 w/ belt mod
OVL Field Flattener