I figured I'd give imaging a go during the full moon, as you do. The gradients were combatted (mostly) by stretching with Generalised Hyperbolic Stretch in PI, Local Intensity = 15, after trying all day in vain to background extract them. No background extraction. Used a synth Lum. And "just a touch" of saturation
ASI1600MM + Antila Pro
4hrs each SHO
90s 200g 25o -10C
Nina + APP + PI
Tips, tricks & criticism most welcome.