NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Confusion in NAO sight reduction tables...?
From: Herbert Prinz
Date: 2006 Sep 13, 08:17 -0500
Geoffrey Kolbe wrote:
>How would you answer this?
>
>Suppose A = 74° 45'. "Set A° = the nearest whole degree of A and A' = the
>minutes part of A."
>
>Would you set A° to 74 or 75?
>
>
A° is to be set to 75.
The wording is correct and is the same in the N.A. for 2007. The same
logic applies to F°.
You see, the auxiliary interpolation table is folded at 30'; If A' > 30'
, the sign for the correction changes! (Same for F'; see steps 5 and 6.)
Herbert Prinz
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From: Herbert Prinz
Date: 2006 Sep 13, 08:17 -0500
Geoffrey Kolbe wrote:
>How would you answer this?
>
>Suppose A = 74° 45'. "Set A° = the nearest whole degree of A and A' = the
>minutes part of A."
>
>Would you set A° to 74 or 75?
>
>
A° is to be set to 75.
The wording is correct and is the same in the N.A. for 2007. The same
logic applies to F°.
You see, the auxiliary interpolation table is folded at 30'; If A' > 30'
, the sign for the correction changes! (Same for F'; see steps 5 and 6.)
Herbert Prinz
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to NavList@fer3.com
To , send email to NavList-@fer3.com
-~----------~----~----~----~------~----~------~--~---