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Thanks, guys. The drift technique sounds like the go. I have been lazy since getting my new scope... a rough alignment by compass/eye, and the goto system does the rest - fine for observation by eye, but not good enough for photography.
I was out last night, and I think my site is pretty dark (22ks from the nearest street lights) but I have to admit I had some difficulty seeing and identifying sigma octantis! Part of that is my lack of familiarity with Octans, and partly because they are just dim stars (I won't mention my eyes if you don't)...
So, question for you Goto scope users... if I do a rough align by compass/eye say, then autoalign, then check and correct drift, should I do a full auto align again after messing with the lat/az? I assume I should, but I'm not entirely clear on what maths the goto actually does.
Thanks,
Al.
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