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Yes Tony, sorry I did mean stars for 3 star alignment. I suppose the list would be pretty extensive to cover all the year.
I do use PHD and I can always find a star to guide on. And yes not so bright stars with a sharp peak make for good guiding. I also use PHD to polar align.
When you say your limit is 10 minutes how much to you permit the star to drift over this period?
Peter
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