I am having no problem now thanks to some insightful help on this forum and reading Keller, with BPP, but even with following Keller I am having problems with my integration results when I proceed with the full PI pre proc. I think too much red. I am just not sure.
But here is what the integration of my Orion Nebula looks like using the full PI pre-proc algorithm re Keller. The only thing I did differently was not check off optimize dark ( i did check off calibrate) when calibrating the flat frames.
The attached is what I am getting.
and this is my astrobin of my BPP w PI post -proc (same data set).
https://www.astrobin.com/81ntqc/B/?nc=userSomeone here must have had these results before. I extracted the channels here only to see what they look like and the red looks off.
Here is a link to the integration file:
https://www.dropbox.com/s/bwagypysdfwesc0/integration%20ORION.xisf?dl=0Thank you so much