(https://cdn.astrobin.com/thumbs/SrO5d4R-e2qJ_1824x0_fcAgcUjK.jpg) (https://www.astrobin.com/full/321344/B/?nc=user)
From the same frame as M52 Open cluster from 12/11
95 x 300 second subs (Almost 8 Hours!)
20 x Darks
20 x Flats
20 x Bias
stacked with DSS Drizzled
Processed with Adobe Photoshop CC 64bit with Camera Raw settings with Levels/Curves.
Roger
This is not an easy target and you've done a good job from a light polluted area. Another 8 hours!!
If your sky is predominately orange from sodium lights rather than grey from LED lights then a light pollution filter would help with emission nebulae like this. The IDAS P2 filter is best but it's pretty expensive now because of Brexit:
https://www.firstlightoptics.com/light-pollution-reduction/idas-p2-light-pollution-suppression-filter.html
It avoids the colour casts that the Astronomic CLS filter has.
However, the days of light pollution filters are numbered now - they are useless against the glow from broad spectrum LED streetlights.
Mark