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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Revised Nautical Almanac Concise Sight Reduction Tables
From: Stan K
Date: 2015 Feb 18, 09:00 -0500
From: Stan K
Date: 2015 Feb 18, 09:00 -0500
Some of those items are not quite "permanent". We have discussed the change in the refraction tables starting in 2004, but the Auxiliary Table for the Nautical Almanac Concise sight reduction method also changed in format and values (just one line) from 1999 through 2004. In 2005 the values changed back to the pre-1999 values, but the format change remained. The 1994 Almanac uses the current values but is not as easy to use as the 1999 or later Almanacs.
Antoine, let me know if you want a scan of the current Auxiliary Table or the 1999-2004 version.
Stan
-----Original Message-----
From: Frank Reed <NoReply_FrankReed@fer3.com>
To: slk1000 <slk1000@aol.com>
Sent: Wed, Feb 18, 2015 2:42 am
Subject: [NavList] Re: Revised Nautical Almanac Concise Sight Reduction Tables
From: Frank Reed <NoReply_FrankReed@fer3.com>
To: slk1000 <slk1000@aol.com>
Sent: Wed, Feb 18, 2015 2:42 am
Subject: [NavList] Re: Revised Nautical Almanac Concise Sight Reduction Tables
Antoine,
There is a copy of the Nautical Almanac for 1994 that was accidentally scanned and released by Google a few years ago. Though the annual data for the year is ephemeral, the tables for refraction, dip, and interpolation, as well as the explanations and advice on calculator techniques, and also the concise sight reduction tables are all "permanent." You can grab a copy of it from the download area for my celestial navigation classes here. It's over a hundred megabytes, but worth the few extra seconds that may take.
Frank Reed
ReedNavigation.com
ReedNavigation.com
