Quote:
Originally Posted by thegableguy
you'll be using autoguiding so it's not super necessary to get it exactly dead on. Set the altitude with your coordinates, make sure the mount is perfectly level, and point it as close to due south as you can manage, and you should be okay.
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If your polar alignment isn't sufficiently accurate then you'll get field rotation (the objects in the field of view will slowly rotate in an arc centred on the guide star causing blurring.) The polar alignment doesn't need to be perfect but you can't be too sloppy about it either.
Cheers,
Rick.