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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Longhand Sight Reduction
From: Greg Rudzinski
Date: 2014 Nov 24, 18:45 -0800
From: Greg Rudzinski
Date: 2014 Nov 24, 18:45 -0800
Greg L,
The 3x5 format is as follows:
Latitude L
Declination d A B
L +/- d Haversine hv Haversine hv
L +/- d +Haversine hv +P
1- sum Arc Haversine sum
Zenith Distance ZD
LHA hv LHA Canculated Altitude Hc = 90°-ZD
product P = (1-sum * hv LHA)
Greg Rudzinski