SPX350 F4.53, ATK-16HR, Baader filters, Astrodon Ha.
This is a big galaxy in Centaurus not far from Cent A and part of the same group at 11.7 mil lyrs distance. Quite a few HII regions visible and seems to have a brownish colouration possibly owing to its closeness to the Milkyway.
Beautiful capture and processing John, you've really brought out those HII regions.
The upper right of the galaxy seems ablaze with HII - if there are any intelligent beings in that area they must be having quite a view