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You can get accurate PA without being able to see the SCP.
Google DARV. It is a PA routine by Robert Vice. After a few
iterations to familiarise yourself with it, you can get accurate PA
in 15-20 mins. All you need is a telescope and a DSLR.
raymo
Last edited by raymo; 24-10-2017 at 03:10 PM.
Reason: more text
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