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Hi Greg (what's that echo in here?....  ;-))

If you're asking why the declination of the (suppposed) pole star isn't
exactly 90 degrees - well, that's because it really isn't.

Polaris is close to having a 90?N declination, but it isn't exact and it's
off by enough to throw off your navigtion calculations by several miles.
Remember that 0.1 degree = 1 NM, so 60' - 18' = 42 NM - not exactly what I'd
call "accurate" navigation, but probably close enough to help get you
oriented if you're *totally* lost somewhere...  ;-)

--
GregR


----- Original Message -----
From: "cfi@licfi.com" 
To: 
Sent: Friday, May 19, 2006 9:53 AM
Subject: polaris dec


> Question for the list:
>
>   Please excuse the neophite question but; Why does the USNO on-line
> almanac show the following?:
>
>  declination of polaris:
>  month        d   m
>  may         89.17.5
> june         89.17.4
> july         89.17.3
>  aug         89.17.3
> sept         89.17.4
>  oct         89.17.6
>  nov         89.17.7
>  dec         89.17.9
> -------2007------
>  jan         89.18.1
>  feb         89.18.1
>  mar         89.18.1
>  apr         89.18.0
>  may         89.17.8
> june         89.17.7
> july         89.17.6
>
>     Thanks,
>         Greg
>
>
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