A short capture taken on 16th (Tuesday night), total exposure 4h20m. Although I was intended to capture this target on multiple nights (one night per filter, at least), with my experience from this winter ( a month between two good nights), I decided to capture
So: I had 2h30m OIII (6nm Astronimik), 1h50m
It wasn't easy to make the core blue-cyan. I made a lot of combination with PM (on linear and non-linear phase) with hue adjustment, but I didn't succeed to have that blue. Finally, I did it with
Clear skies!