Title Proper Narrowband Normalization Workflow

Description I made two critical mistakes processing the first version of this image. First, I used Spectrophotometric Color Calibration. Bill Blanshan advises not to use SPCC if using his Narrowband Normalization tools. Second, I thought I'd done an unlinked stretch, but the stretch I did was in fact linked. This revision was processed without SPCC and stretched with "Bill's Unlinked Stretch v6", see notes to https://www.youtube.com/watch?v=6se3b1ZotMc. The differences between the two versions speak for themselves. Except for these two changes I strove to follow the same processes that I used the first time. There's only so much I was able to do with the mottled background (due to low integration time, I believe), short of clipping it to black. I will aim to capture much more data next summer when the Veil is overhead, and use that to produce a Revision C. I will leave my first version here so that others may learn from my mistake.

Published Dec 24, 2023