NGC 5128 Centaurus A, 20.7 hours of exposure: Ha (1800s), L,R,G and B (300s), Telescope 3, Processed with PixInsight.
The data set used to create the above photo is available for purchase for $45.
The data set includes:
Ha (1800s) and LRGB (300s) Calibrated Subframes (Uncropped).
Master Dark, Master Bias, Master Flats