I'm just getting started with NB imaging and while waiting to take sky flats and get the FSQ-106 focused, I took 11 frames each of the Moon using the Ha, SII, and OIII filters. Aligning these was done outside of PI as I'm not aware of a way to align "Planet" images. When I do the RGB combine and assign each filter to the RGB pallet I get an image that the Histogram tool shows the colors with gaps between them like 3 mountains side by side. How do you align the histogram?
This may not turn out to be a good test but it's going to happen so I might as well see how this is done.
Thanks,