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 ID||C4 NGC7023 Iris Nebula|
Size 21.4′ x 20.9′
|Telescope||250mm f4.8 Newtonian, MPCC|
|Exposure(s)||25 x 240s, 14x180s|
darks, flats, bias
|Processing||APP, Photoshop, Topaz Denoise AI|