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How to determine North in an eyepiece?

Started by paul.knight, 02/03/2010 09:00AM
Posted 02/03/2010 09:00AM Opening Post
I have found some discussions on this but am still having trouble conceptualizing it. I understand how to determine the E-W line, but how do you determine the N-S line? I primarily use an SCT on a german equatorial mount but sometimes I use a refractor--would this change things? Many thanks!! -Paul
Posted 02/03/2010 07:12PM #1
In a refractor or SCT, North is clockwise from West.
In a reflector, counter clockwise.

Zambuto dobs: 14.5" Starmaster and 8" Portaball

Refractors are ok too, sometimes.
Posted 02/03/2010 07:55PM #2
Pull the front of the scope to the north and see which way the star moves.

Alex