The Ghost of Cassiopeia and it's neighbors in HaLRGB.

 This is from only 1 night of data shot 2 months ago but I decided to process it anyway and see what I had. I had planned to add more data but, unfortunately, that never came to fruition. It was the only clear night I was able to image that weekend and the following week I found out I'd be moving to the southeast for awhile for work so I turned my attention to darker and fainter targets for my remaining time under the dark CA skies. I now live in a Bortle 8 but have Bortle 4 skies relatively close so initially I remained optimistic that I'd be able to return to this target and shoot more broadband data eventually. Unfortunately though, I've discovered leaving the desert means I now have to deal with clouds—the bane of astrophotographers everywhere else—so my optimism has waned a little. I haven't been able to image for over a month now!! But, on the bright side I now have lots of free time for processing, hence this image! 

 I processed it in PixInsight using a variation of a typical LRGB workflow that I've adopted since the recent improvements in A.I. star removal tools. After background extraction (and color calibration of the combined RGB data) I removed all the stars and continued with a normal LRGB workflow on the starless files to a final-ish state before adding in the Ha and stars. For the starless Ha I just did a simple histogram stretch, noise reduction, and some minor contrast adjustments before blending it into the LRGB image using a variation of the method I used for adding the stars. The stars are RGB only and were stretched and processed to taste before being added to the starless HaLRGB image using a re-linearization technique developed by a friend and described in his guide at https://www.nightphotons.com/guides/star-addition. Something new I tried on this image is using a star mask and Bill Blanshan's star reduction processes to isolate and lightly reduce the small scale stars giving slightly more depth to the starfield. It worked quite well I think and it might become part of my workflow now.