# NavList:

## A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

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Re: Nasr
From: Hewitt Schlereth
Date: 2009 Mar 23, 22:22 -0400

```You know, Mike Pepperday has a nice little logarithmic method called
Celestial Navigation with the S Table. Like Ageton he shows you the
divided triangle (NASR doesn't; that's my big beef with it) and the
formulas he uses. His triangle is divided like Dreisenstock's -
perpendicular from the observer to the declination meridian. To
understand the work forms for any of these methods, it's a big help to
know that to multiply you add logarithms.

The S Tables are nine pages. Pepperday's explication is a great deal
more discursive than the NASR or Ageton or Dreisenstock. \$9.95 from
Celestaire. (You're welcome, Ken).  :-)

Hewitt

On 3/23/09, Robert Eno  wrote:
>
> Guy,
>
> I know the feeling.
>
> If you want to gain an understanding as to how it works, do the following:
>
> -Find the last digit in Pi.
> -Split the atom using only items you can find in your kitchen.
> -Define the universe. Provide three examples.
> -Invent cold fusion for use as an unlimited energy source
>
> Once you have completed the above tasks, you still won't be able to
> understand the Byzantinian process that constitutes that most complete and
> multi-multi-staged sight reduction format on the planet.
>
> In all seriousness, I spent an entire summer in a field camp (evenings)
> working problems using those tables. In the end, I gave up on them because
> there are too many steps and therefore too many possibilities for stupid
> mistakes.
>
> If you want a compact set of table, HO 211, Ageton is the best.
>
> And that is the word from the cheap seats.
>
>
> Robert
>
>
>
>
> ----- Original Message -----
> From: Guy Schwartz
> To: NavList@fer3.com
> Sent: Sunday, March 22, 2009 10:48 PM
> Subject: [NavList 7726] NASR
>
>
>
>
> Hello All:
>
> I know how to reduce a sight using the Nautical Almanac Sight Reduction
> method, however I don�t
>
> Understand what I am doing aside from following the recipe.
>
> Can anyone give me a easy to understand description of what each step is
> doing.
>
> Thanks
>
> Guy
>
>
>
>
>
> "May the SCHWARTZ BE WITH YOU"
>
>   >
>

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