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Old 02-07-2018, 05:25 PM
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OzEclipse (Joe Cali)
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Join Date: Jun 2012
Location: Canberra, Australia
Posts: 948
I recall being at the Siding Spring Observatory about 40 years ago. They wanted to show us something on a daytime tour and used the precision setting circles on the Grubb & Parsons mount of one of the smaller (24 /40 inch) scopes and pulled up a 2nd or 3rd magnitude star toward the zenith in a 4" f15 refractor guide scope they had parallel mounted to the bigger primary scope.
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