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Jeff,

Have a look in the list archives for April 20, 2004. A notice was posted
explaining that the refraction values had been recalculated, with effect
from the 2004 almanac.


Trevor Kenchington



You wrote:

> I was surprised to see that the summed altitude
> correction (Refr/SD/HP) table for the Sun differs
> between the 2003 and 2005 editions of the Nautical
> Almanac (I don't have a 2004).
>
> I assumed this table would be the same from year to
> year, but it was pointed out to me that the "bracket"
> values around the correction values do indeed differ.
> Of course this was pointed out by a student right
> after I voiced my assumption to the class...
>
> Your wizardly discussion is appreciated.
>
> -Jeff


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Trevor J. Kenchington PhD                         Gadus@iStar.ca
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