Thread: Double star measurements
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Old 08-05-2015, 12:14 PM
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Eratosthenes (Peter)
Trivial High Priest

Eratosthenes is offline 		 
Join Date: Apr 2015
Location: Melbourne, Australia
Posts: 392
an EQ mount with tracking (can also use an Alt azimuth mount)
a laser etched astro-metric eyepiece
a good stop watch that measures down to about 1/100th of a second
a warm coat, and a glass of Zacapa XO rum
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