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Azimuth of the Sun, Continued - 14220_266
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Quartermaster 1 & C - Military manual for the Quartermaster rate
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Amplitude of the Sun - 14220_268
Azimuth by Polaris Azimuth by Polaris Polaris  (the  North  Star)  is  always  within  about  2°  of  true  north.  The true  azimuth  of  Polaris  is  tabulated  in  the  Nautical  Almanac  in  the Polaris  Tables  for  northern  latitudes  up  to  65°. Gathering  Information:  The  entering  arguments  for  the  Polaris  Tables are  the  LHA  of  Aries  (GHA  of  Aries  plus  east  longitude  or  minus  west longitude)  and  latitude  (at  intervals  of  5°,  10°  or  20°).  An  extract  from the  Nautical  Almanac  Polaris  azimuth  table,  which  appears  at  the  foot  of the  Polaris  Tables,  is  shown  in  figure  9-5.  As  you  can  see,  the interpolation  can  be  done  by  visual  inspection  of  the  appropriate  LHA and latitude. The  normal  use  of  Polaris  for  obtaining  compass  error  is  when  your  ship is  in  the  lower  northern  latitudes.  This  allows  you  to  take  a  bearing  on Polaris  using  the  telescopic  alidade.  Since  the  computation  and interpolation  of  azimuth  by  Polaris  are  relatively  simple,  we  will  not  go into  step-by-step  procedures  in  this  text. Figure  9-5.  Extract  from  the  Nautical  Almanac  Polaris  Tables. 9-11

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