Astrophotographers hangout. Invite friends and notice chat bar on bottom.
This is a re-process of data captured more than a year ago. I didn't have the 3nm Astrodon filters then, so there are some issues with reflections off the filters and somewhat weak O3 and S2 data (relative to the star brightness). At that time I was frustrated by these shortcomings and that's why I bought the Astrodon filters, but I have since learned some processing techniques to help bring out the O3 and S2 details. As has been my habit lately, I shifted the hue arbitrarily to maximize the differentiation of the different regions.