|
Hello,
I'm new to the group and am starting in film
astrophotography. I have taken some shots at prime focus and have
noticed star drift. I am autoguiding with a webcam on a seperate guide
scope.
Right now I am assuming that if I am autoguiding on
a star, then if my polar alignment is off, the field of stars would rotate
and trail around the guide star, with the guide star standing still. Is
this correct?
I am also assuming that if my star trails aren't
rotating around the guide star, that this is because of flexure between the
guide scope and the main scope. Is this correct?
I am trying to see weather my trails are caused by
poor polar alignment or flexure and if my second assumption is correct,
then I need to work on the flexure between the scopes.
Thanks for you help,
Adam |
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