Hi folks,
Here is my current progress on a wide field image of the GUM12 nebula region, including the Vela supernova remnant and the tiny (on this scale) pencil nebula NGC2736 down at the bottom right. The area shown represents approx 9 x 6 degrees.
This is 22hrs (Ha 6, O 10, S 6) shown in HSO palette which I find easier to process than SHO, and probably more pleasing to the eye? Just over half of the exposures were from a dark sky site, the rest from Melbourne.
Samyang 135mm lens, ASI 2600MM, Antlia 3nm filters. Stacked and combined in APP with star reduction and Selective colour adjustments in Photoshop on separated star/starless layers followed by Noise Exterminator.
The stars look a little dodgy towards the margins but this seems like an unavoidable trade-off when using camera lenses which were likely originally never intended for astrophotography.
https://www.iceinspace.com.au/forum/...1&d=1713353602
full sized image here:
https://www.dropbox.com/scl/fi/hnq9r...4yyyxveya&dl=0
thanks for looking
cheers, Jon