NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Large Sunspot Today
From: Norm Goldblatt
Date: 2013 Nov 18, 11:27 -0800
From: Norm Goldblatt
Date: 2013 Nov 18, 11:27 -0800
My goodness. That's Optics 101. Never thought about the inversion. And also forgot that for Sun, a liquid reflecting surface is 'auto-leveling'. I was thinking about a 1st surface mirror.
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