This is towards the upper portion of the Veil photo.
You can see that the stars have elongated left-right, I guess because the polar alignment was out of whack and maybe I didn't autoguide*, though, as you can see in that big, bright blue star, the star-spikes on it have flared to the upper and lower portion.
Apparently the first effect is due to star elongation, natural trailing, and the 2nd error is some optical thing...right?
*And about 'Field rotation': can that happen when slightly mispolar aligned? or slightly mispolar aligned and autoguiding?
Like one time before, I tried autoguiding and this even made my star trails worse than with no guiding going...why? How could that be?
