Many thanks Colin. This should all be in a beginners forum but appreciate the advice and it makes it all very clear what is required. I imagine taking flats close to the time you take the image is better given the possible variability of dust elements etc. in the image train. When do you take them? If the plan is to tack the photography onto visual observations I'm guessing I could do this while packing down at the end or while setting up at the beginning to avoid ruining dark adaption?
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