Here is another NGC6559 I took recently.
AstroPhysics Riccardi Honders 305 F3.8 and QHY600m.
A tough one to process. For some reason the posted image is less vibrant than the one on my screen in Photoshop. I don't normally see a difference.
https://pbase.com/gregbradley/image/171970798/large regular size
https://pbase.com/gregbradley/image/171970798/original large size.
Greg.