
This is m51, 11 hours of 60 sec exposures,100 gain. Bortle 9, would love to take longer exposures but the light pollution starts raising hell around 120 seconds with a UV/IR filter in my backyard. Still working on my process in pixinsight
Telescope – William Optics GT71
Field Flattener – William Optics Flat6AIII
Imaging Camera – ZWO ASI533MC
Guide Scope & guide camera William Optics UniGuide 50mm with asi120mm
Controller – ZWO ASIAIR Plus
Autofocus – ZWO EAF
filter drawer for 2" filters
Filters: Zmo UV IR CUT 2"
by f4mnect44

1 Comment
Damn good photo considering in light pollution and with a 71mm scope. Great detail zoomed in. I would almost crop it to emphasize M51. What mount are you using?