NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Latitude of prime vertical sight
From: Peter Fogg
Date: 2007 Aug 1, 09:12 +1000
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From: Peter Fogg
Date: 2007 Aug 1, 09:12 +1000
Paul.Lee wrote:
> "I'm new to navigation, and am doing some work on the usage of prime
> vertical sights. I know it gives longitude, but if you knew the time
> of sunrise, is it possible to obtain a value for lattitude too? "
How would you derive latitude from a time for sunrise, Paul? I suspect that it could give a rough indication, but what advantage would this method propose?
Don't forget that due to refraction, measured sights of bodies close to the horizon can be unreliable.
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