Sorry for bombarding you with questions again, but I’m still in the learning phase and getting to know the Seestar.

Why is it that even after what I consider a very good polar alignment (0.1°–0.3°), about half of the 60-second frames are rejected (due to star trails)?

I mean: if the alignment isn’t good, they should all—or almost all—be rejected, but while watching during the exposure, I saw that on average 50% (or more) were discarded. There weren’t “good” phases followed by “bad” phases: the distribution of rejects was fairly uniform over time.

Speaking of rejects: is there a way to know how many images were rejected afterwards, once processing is complete? And for what reasons (star trails, no stars, ...)?

Thanks a lot for your patience!