Good day, I have found my problem -- inexperience for sure. In order to remove the noise, I subtract the dark master to each HA frame individually...
Good day, I am trying to learn. I have only taken a few images, my M57 my first was not bad -- for a first image taken with my SBIG STL 11k camera...
Good day, I am installing 6.18 (bought originally 6.05) but computer has been long since changed and getting back into the hobby for imaging want...
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