C2022E3ZTF widefield

The thing about memory and age is that the relationship is not linear. When I imaged the comet, I left my timer snapping away whilst I sat indoors in the warm. When I returned to my camera the sky had clouded over from horizon to horizon. After a lot of fiddling about trying to remove moonlight and light pollution from good light frames, time passed and I suddenly thought what if I use the clouded out frames as flats? With any luck the moonlight and pollution would be reflected in the uniformly illuminated sky. Lo and behold it worked!