So T, I did notice in the processing, that my image (I am horrified to share much yet, still so new lol) had the normal blue and green peaks in the histo in their "normal" places, and the red peak was further up the graph. So in PS I brought the red down to where the blue and green were, is this what you mean by the WB/tint adjust?
My resultant image did have a lot of red, but it was my belief that it was the hydrogen I was missing before, now revealed.
(Not asking you to hold my hand to understand the whole of these concepts, just confirming what I understand to be going on)
Good question. Of course I was referring to the terrestrial video where sound color principles apply and there is no argument..
So it is complicated as Jim's post alludes to, that the IR invades not only only the red but also blue and green channels,
---------and daytime IR photographers take advantage of this with IR pass filters of different cut-offs to exploit the "false colors."
Not only does IR light invade all three channels (how it does (ie not in a balanced way) ---depends on the particular dye and tech of the particular model and manufacturer (all color filter arrays are not the same),
but the H-alpha and other visible long-wave red light also makes the red channel much more pronounced....
(hence the color cast in the video).....
The objective way to try to get back to a color norm with WB/tint is by referring to a known referent point and then "balancing the channels in reference to that point....
Often in photography people over-simplify white-balance as just concerning "color temperature" of the light source lighting a scene. If it were than simple.
However, many light sources not only have a color temperature drift (blue/amber),
but they also have a tint (magenta/green). There are situations where color correction of the overall image cannot completely remove a color cast,
so one has to do secondary color correction (selective color changes)......
This recent thread explores clarification of the ways this can be done,
see the link (astropix) where Jerry gets into this.
PixInsight software also has some fun methods:
[and you can see from exploring the two links that people have different opinions about color in AP]
***concerning the histogram:
note the histogram only shows a peak because of the numerical number of PIXELS, it tells you nothing about particulars of the image.
That is why video is all about the waveform(parade) and vectorscope tools :
However photography and astrophoto tools don't utilize these so everyone thinks the histogram is great.