NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Dave Walden
Date: 2014 Jan 13, 16:34 -0800
I agree:
Step 1 Lat(-90-90)= 35
LHA(0-360) 15
dec(-90-90)= -17.912
Step 2 table I extract on L and t b= A= C= Z'=
54.061 999 674 81.263
Step 3 sign adjust b,Z' 54.061 999 674 81.263
Step 4 add d+b d+b= 36.150 =36°09.0’
Step 5 table II extract with d+b B= D=
22922 136
Step 6 add B+A, extract table II, col B B+A= 23921
hc= 35.204 =35°12.2’
Step 7 add C+D C+D= 810
subt 10000 if need 810
Step 8 using C+D, extract Z'' from table II Z''= 81.196
Step 9 sign adjust Z'' 81.196
ZN=
Step 10Add Z' and Z'', IGNORE SIGN OF Z =Z'+Z''=162.5 - lat>0 LHA>180
197.54 lat>0 LHA<180
- lat<0 LHA>180
- lat<0 LHA<180
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