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Originally Posted by smenkhare
On the dobsonian mounts, how do you tell where the scope is pointing?
ie. i discover a new planet, how do i tell NASA/CSIRO where i'm looking?
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You use a finderscope to point the scope. You make note of nearby stars and refer to charts for precise location. With a tripod mount it works the same way. Those setting circles you see on EQ mounts are a rough guide at best. I don't think most people use them.
You can also attach a computer like the ArgoNavis system to a Dob, which will give you instant readout of where the scope is pointing.