That one there was just a very quick stack in MaxIm and the. Stretched in PI. Calibration to finish in about 10 minutes
I have a feeling that there are a few bad frames in there that will have to be removed, got a bit more time this afternoon to have a play with it. The core isn't actually blown out, I did run a quick HDRTransformation on it but actually preferred the look without it :-)
You are right with the saturation though, didn't hit it too hard. Colour calibration was de-linking the stretch and letting it do it that way
It was taken with a 130mm F/5.7 refractor and a QHY9.