NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Reusability of Polaris Tables
From: Gary LaPook
Date: 2015 Sep 8, 17:51 +0000
From: Francis Upchurch <NoReply_Upchurch@fer3.com>
To: garylapook@pacbell.net
Sent: Tuesday, September 8, 2015 5:07 AM
Subject: [NavList] Re: Reusability of Polaris Tables
From: Gary LaPook
Date: 2015 Sep 8, 17:51 +0000
Aricept.
gl
From: Francis Upchurch <NoReply_Upchurch@fer3.com>
To: garylapook@pacbell.net
Sent: Tuesday, September 8, 2015 5:07 AM
Subject: [NavList] Re: Reusability of Polaris Tables
Apologies,
I think my dementia is getting worse!
You obviously still need a sextant and visible horizon for Ho Polaris for latitude. Do not need either for the longitude, just the nocturnal, watch and almanac for GHA Kochab or similar circumpolar star. Still a good future project though. I would like to find out whether an accurate nocturnal could give reasonable longitude by this method. I know even the simple version gives reasonable latitudes. (no watch, almanac etc needed here, just sextant and visible horizon.)
I must start taking those tablets but can't remember what they are called!
Francis
