Well, you learn something new everynight...
Tonight was a bit of a revelation for me. Maybe I was having a "blonde moment" but bear with me on this one. You'll probably laugh your a** off anyway.
I've been using the Hyperstar for a little while now. I have had some little issues to iron out on the way but I kind of got mirror flop sorted out, focus, squaring etc... Tonight everything looked pretty tight and I'm shooting above scorpius in Ha. Subs look real good but for one bloody corner. Always the same corner
... and I'm shooting pretty high so it's not any flexure or flop, noway.
Anyway you all heard about my legendary polar alignment
so I always
get a tad of field rotation. Looking at the subs it looked like the center of rotation was the bottom left of the field and of course the top right corner was the problem
So it hit me (finally). Moved the guider scope towards the left of the field and voila! round stars again... DOH!
