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The Pleiades (M45) - 2023-10-25

This is image is rendered from two nights of capture, and it is my best M45 image yet. Even so, it still does not hit the mark for me.

 

I did not use Blink or SubframeSelector before running WBPP, but WBPP rejected a lot of frames. To better understand why, I went back and used Blink and SfS after WBPP, and saw many frames with bad tracking. It doesn't seem that WBPP rejected enough frames, so perhaps some bad frames were included in the stack. Another potential problem that I detected is that the accepted frame counts are no where near equal across the RGB channels, which possibly accounts for the greenish cast to the smaller stars.

 

My thoughts about how to produce a better image than this one are to 1) cull the bad frames before processing again, 2) keep the good data and collect more data to add more signal and to balance the RGB frame counts, 3) collect some stars only (20s RGB subs) data, and 4) process stars and nebula separately before combining in the final image.

 

 

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Uploaded on October 27, 2023