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Thanks Robert for good info on CentA, interesting to here about possibilities regarding the blue jet. This galaxy has a lot of activity going on as a result of the merger, the X-ray jets are amazing. Imaging it with IR742nm may have been interesting?
Thanks Ken, there are several ways to add Ha to red some use layers 80/20% for ha/red but I just lift the white levels up till Ha background is same or better than the brighter red, you can increase it to twice the red ADU for stronger effect although Ha addition needs to be subtle to blend well with the other colour data. Once equalized I blend red and brightened Ha together to make an Hared for the red channel in Maxim RGB col assembly. I use the LRGB with Ha+R G B as a hidden layer to jewel the galaxy with pink/red patches with opacity to taste. Ha can be blobbish sometimes so you don't want it interfering with the LRGB detail.
Regards, John.
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