Great time with you all!
A few considerations:
1) I have done a quick search on that flashing UFO/Tiangong-1 and it appears to be some tumbling space junk (probably rocket boosters or somewhat). Very rare sight.
2) Just finished a quick stacking and post processing of the Carina Nebula, no reducing though. You can see the dithering pattern since the dark current noise is a fixed pattern, so hopefully with some decent darks it will be WAY better.
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