NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Longitude by observation of the Sun, 19th Century
From: Frank Reed
Date: 2013 Jun 12, 08:53 -0700
From: Frank Reed
Date: 2013 Jun 12, 08:53 -0700
Aha. Jacques, what you're calling Borda's formula was just the standard haversine method. And yes, that was almost univerally used for time sights. I teach it (using traditional tables) to beginning students in one of my classes.
-FER
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