Astroart Forum

Good morning , I have two different session of NGC6888 one with color cmos camera and otehr with te same comso buto with filter H-alpa 6nm
I try wit mat function (fusion + sum) but the image appera complety saturated .
anyone know the process , with photosho and layers is a little bit easy but i like learn to use aa8.

Best Regards
astroB

Good morning, if the H-Alpha is to be used as luminance, then the command is: LRGB Combine.
If not, probably the H-Alpha should be normalized to the color image (Arithmetic / Normalize / Scale) before proceeding with other commands.