NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Spoofing celestial navigation
From: Gary LaPook
Date: 2013 Aug 10, 18:46 -0700
From: Gary LaPook
Date: 2013 Aug 10, 18:46 -0700
See:
http://fer3.com/arc/m2.aspx/3Star-Fix-Canned-Survival-Problem-LaPook-mar-2012-g18349
gl
From: Frank Reed <FrankReed@HistoricalAtlas.com>
To: garylapook@pacbell.net
Sent: Sunday, August 4, 2013 12:44 PM
Subject: [NavList] Re: Spoofing celestial navigation
http://fer3.com/arc/m2.aspx/3Star-Fix-Canned-Survival-Problem-LaPook-mar-2012-g18349
gl
From: Frank Reed <FrankReed@HistoricalAtlas.com>
To: garylapook@pacbell.net
Sent: Sunday, August 4, 2013 12:44 PM
Subject: [NavList] Re: Spoofing celestial navigation
John H, you wrote:
"It would have to be subtle - some of us have the declination of major navigational stars seared into our memories, you'd have to get into arc-minutes to spoof."
"It would have to be subtle - some of us have the declination of major navigational stars seared into our memories, you'd have to get into arc-minutes to spoof."
I would count that as "special knowledge", John. I would estimate that there is not one celestial navigator in a hundred who could tell you the declinations (even to the nearest degree) of more than two navigational stars --and one of those would be Polaris, which, luckily for this mischief, is not listed on the daily pages.
But since you brought it up, I'm curious: how many of the declinations have you seared into your memory? And how did that come about? Did you intentionally memorize some of them?
Let's take a poll while we're here. For anyone reading this, could you estimate the declination of Betelgeuse and Rigel off the top of your head? If you saw a table showing
Betelgeuse with a South declination, would you immediately recognize at as erroneous? Or would you have to think about it for a minute?
-FER
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