Geeday Scott,
That's a fantastic shot. I love those faint galaxies in the background too! Have you used STAR Atlas-PRO to determine the faintest galaxy on your image ?
If you want to use IRIS to get rid of those hot pixels you should type "FIND_HOT COSME 80" in the IRIS command window when the dark master frame is loaded. This command will find hot pixels with a value of up to 80 (you may need to increase this value to get rid of really hot pixels ).
Anyhow, again - what a great shot!
Paul M
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