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: Ducruy Jacques
Date: 2013 Jun 12, 09:12 -0700
From: Ducruy Jacques
Date: 2013 Jun 12, 09:12 -0700
Yes and no, Frank !
In France, we have not haversine table ...
On other hand, you have another formule, sometimes used in England or America :
Hav HA = (Hav ZD - Hav (L-D)) / Cos D Cos L
and this formula is also called "haversine formule".
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