This was a "while I was waiting for something else to rise" object before things went haywire last night. I think about 40x2 minute subs with redcat 51, asi533 and Idas NBZ filter. Got the image mostly stretched and processed in gimp, almost trashed it but decided to save the edit as a .tif and take a hammer to it for fun in siril, tried some background extraction and neutralization, Anish stretch (whatever that is) remove some green. Kind of got the gradient tamed. This popped out after a few more levels and curves adjustments, pulled the red saturation back down.
Still noisy (probably pixel pulp from the stretching).