A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Magnetic Variation
From: Jeremy C
Date: 2010 Feb 27, 21:30 EST
I've never heard of that at all. Variation has to do with the
magnetic fields of the earth. While they may change slightly with the
Earths angle and distance to the sun over the course of a year, it
certainly isn't something that you deal with in practical navigation.
Variation, as marked on charts, changes annually, and usually only by some
matter of minutes.
I guess it depends a lot on exactly how technical you want to be with
In a message dated 2/27/2010 9:22:42 P.M. Eastern Standard Time,
took a test today and one of the questions had to do with magnetic variation.
The answer to the question was that magnetic variation changed seasonally. I
checked Chapman’s, Dutton’s and Bowditch, no mention of seasonally
have any information or was the test wrong?
the SCHWARTZ BE WITH YOU"
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