Another  go a this for the ASE Caldwell Project. A really tricky one this. Hidden in the dust from our own galaxy, this would actually be naked eye brightness if not obscured. From two sets of data but still challenging.

Object IDC4 NGC7023 Iris Nebula
DetailsMag. 9.1
Size 21.4′ x 20.9′
2021-04-11
Telescope250mm f4.8 Newtonian, MPCC
CameraQHY168C @-15°C
IDAS P2
Exposure(s)25 x 240s, 14x180s
darks, flats, bias
CaptureNINA
ProcessingAPP, Photoshop, Topaz Denoise AI