This is a rehash of one of my favorite early images:
NGC 7635: Bubble Nebula in H-SO-O. It's not entirely bicolor since there's some SII in the green channel. I wanted to mimic the accidental 'pink bubblegum' effect I achieved last time, and I achieved that by adding some sulfur in the mix. I still had to do a little color balancing to get it to match my previous effort though.
The main reasons why I decided to reshoot this:
1. I've always been a little annoyed by the lack of RGB stars in the original - they're too golden/purple-y. I'm happy with how they came out this time.
2. I really regretted not getting M52 and NGC 7538 in frame (not that it was possible without doing a mosaic). There's so much going on in this area and I wasn't happy that so much of it got cut out (I did at least get KjPn 8 in the original though!).
3. I've really wanted to do a SHO version of this target. I did originally make a SHO version back in 2017, but I was so disappointed with how it came out that I took it off my wall. I tried reprocessing it years later, but wasn't happy enough with the data I shot. I'm still having issues getting the colors right this time around. My original plan was to do the SHO version before the (mostly) bicolor version, but I got frustrated with it (it's literally just green) and so I put it aside while I tried doing a bicolor. This version started looking good almost right away, so I'm publishing this version first.
I did take my hydrogen from my first image, removed the stars, ran deconvolution on it and masked some of it in as a luminance layer to get as much detail as possible in the bubble itself. It seems to have worked, however, I'm not listing that data (approx. 4.25 hours of Ha) in this image as it's really just a handful of pixels masked in right in the center, and the focus of this image is the composition as a whole.
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