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How to measure horizon with goto GEM

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#1 Jeff in Austin

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Posted 04 March 2011 - 06:38 PM

Is there a quick and easy way to measure horizons with a GEM, preferably during the day? I'm thinking of taking measurements every 5 degrees. It seems like a trivial question with an alt-az mount but how can I maintain 5 degree spacing with a GEM?

#2 JAT Observatory

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Posted 04 March 2011 - 07:00 PM

Connect the mount to a planetarium program then turn on the horizon grid.

#3 Jeff in Austin

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Posted 04 March 2011 - 07:07 PM

Planetarium Program, hey I have one of those!

So simple. Thank you.


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