Thanks for all the feedback!!!
The stars are off definitely off a little, and I'm sure it's user error. The first time I channel combined and then adjusted the colors (green correction) the stars were all VERY magenta. I know this is expected, but I decided to try a slightly different approach to see if I could eliminate the magenta stars without having to create without having to result to masks and deconvolution and getting the halos corrected (I'm still new to Pixinsight). Here's what I tried:
- Register the three channel stacks with each other. I used the Ha stack as the reference
- Once registered, run StarNet on each image band to remove the stars and end up with six images: three nebula only (SII, Ha, OII) and three star masks (also SII, Ha, OIII)
- Channel combine the star masks. Then, desaturate the resulting RGB image using the curves tool.
- Channel combine the nebula images and "play" with the resulting Hubble palette color scheme.
- Combine the desaturated star mask with the Hubble palette nebula using Pixelmath
I'm not sure what I did wrong, but I also noticed the alignment with the stars seemed off, and I'm pretty sure it's the OIII star mask that's the cause of the issue. Maybe I didn't use the registered file? I'm not sure. Because I had never done a Hubble palette before, I "went with it" to get a final result. The result turned out better than I expected even with a mistake.
I think my tilt issues are more likely user issues with registering views instead of files. My Pixinsight "desktop" was messy and it's possible I closed the wrong view for my OII stack. *shrug
I'll likely play with this data a lot more and try different processes to come up with a Hubble palette result that I like. I tried not to go "over the top" woth the colors on my first pass. The next time through I might go nuts and see what happens.
Again, thanks for the feedback!!!!!