My last process of this data revealed lots of detail and some of the halo but I was not overly happy with the results. It looked too contrasted and the colour was dark blue/red. So I collected a bit more data in the colour and reprocessed the data from scratch. My question is what is the actual colour of this galaxy? It's a rhetorical question really.
All I did to answer this question in my mind is push the saturation and boost the contrast a bit but not too much.
I think the colour looks more natural than my previous rendition and the halo is a lot brighter.
Click here for image
PS while it might seem like another in the plethora of NGC253's, I remember when Centaurus A was almost the only image in this part of the forum.
