By admin
http://www.supportnow.biz/newtonian-reflector/
Telescope Collimation?
Is there a simple way I can tell if my Newtonian reflector is already collimated? I will eventually buy the tool, but for now how would I know?
You can do a star test. Point your scope at Polaris, or any other medium bright star. Slightly defocus the image. Are the rings concentric or lopsided to one side.
Look at this web site:
http://www.skyandtelescope.com/howto/diy/3306876.html
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February 7, 2010 at 12:37 pm, filed under
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