NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Nav Exercise #4- Amplitude of the Sun
From: Jeremy C
Date: 2008 May 24, 00:47 -0700
From: Jeremy C
Date: 2008 May 24, 00:47 -0700
Here is an example of one of those archaic amplitudes.
A ship is at sea and its DR Latitude is 14 degrees North. At about
0830 UTC on 6 May 2008, an amplitude of the sun is observed while the
body is on the celestial horizon giving a bearing of 288.0 deg per
gyro compass. Local variation is 2.0 deg East. The ship is heading
208 deg per gyro compass and the magnetic compass heading is 207
degrees. Determine Magnetic Compass Error, Gyro error, and Deviation
at that heading. Please let us know if you used tables or formula
to find the amplitude value.
Jeremy
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