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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Sight reduction methods
From: Stan K
Date: 2015 Nov 4, 09:38 -0500
From: Stan K
Date: 2015 Nov 4, 09:38 -0500
Robert,
Judging from your next message, you already know this, but I'll say it anyway.
Yes, Mike Pepperday's S-Table was published in the Nautical Almanac for just a few years in the '90s, in addition to the NASR method, which is still included.
FYI, Rodger Farley included a similar S-Table method in his "Celestial Navigation in a Teacup". It works the same way as Pepperday's, but the table values are different.
Stan
-----Original Message-----
From: Robert VanderPol II <NoReply_RobertVanderPolII@fer3.com>
To: slk1000 <slk1000@aol.com>
Sent: Wed, Nov 4, 2015 5:37 am
Subject: [NavList] Re: Sight reduction methods
From: Robert VanderPol II <NoReply_RobertVanderPolII@fer3.com>
To: slk1000 <slk1000@aol.com>
Sent: Wed, Nov 4, 2015 5:37 am
Subject: [NavList] Re: Sight reduction methods
Re: Sight reduction methods
From: Stan K
Date: 2015 Nov 3, 16:55 -0500Dale,
There are dozens - just check out an old Bowditch. However, not all are considered "mainstream". In addition to the ones you listed, some other popular ones are (or were) HO208, HO214, Weems Line of Position Book, and, maybe, the S-Table (which was published in the Nautical Almanac for a few years in the '90s).Stan
Unless there was a short period the S-tables were included in the NA, it was Davies' "Concise Tables for Sight Reduction" that are in the NA and are now known as NASR. The following link includes a PDF of the tables, instructions, workforms and history partially from StarPath and partially from the NA:
