[TowerTalk] Direction Finding
Sun, 12 Mar 2000 12:58:02 -0700
This subject comes up time and time again. We're going to get bombed with
shadow theories, but what's wrong with using the North Star (Polaris) as a
northern reference? It doesn't move more than a degree off true north and
is visible in most of the Northern Hemisphere.
At 07:38 PM 3/12/00 +0000, you wrote:
>Is there any info "out there" on using one's latitude, longitude, time of
>day, and time of year to precisely measure directions with the sun and the
>shadow it casts?
>This would seem a good way to align and claibrate rotating systems.
>When I used to fly I was taught to do this rather roughly, in emergent
>situations, by pointing the nose of the airplane at the sun and setting the
>compass according to the reasoning: the sun is at 90 degrees at 6 a.m.
>(standard time) and moves 15 degrees per hour to 270 degrees at 6 p.m.
>Ralph - K0IR
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