NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Andrés Ruiz
Date: 2007 Oct 25, 07:56 +0200
Dear Frank [FER],
I have detected that if the format of the message is [Text without format] enter immediately in NavList, but if [HTML] is used there is a delay of five or six hours.
Do you know why?
Andrés
-----Mensaje original-----
De: Andres Ruiz
Enviado el: jueves, 25 de octubre de 2007 7:42
Para: 'NavList@fer3.com'
Asunto: Re: Marq St. Hilaire - Altitude intercept method
Yes, thanks.
I copy & paste it from my article " Vector equation of the circle of equal altitude " without checking this.
The equation is:
sin H = cos B cos Dec cos ( GHA-L ) + sin B sin Dec
-90 <= Dec <= +90º
0 <= GHA <= 360º (W to E)
0 <= H <= 90º
-90 <= B <= +90º
0 <= L <= 360º (W to E)
and
LHA = GHA+L
sin H = cos B cos Dec cos ( GHA+L ) + sin B sin Dec
-180(W) <= L <= +180º(E)
-----Mensaje original-----
De: NavList@fer3.com [mailto:NavList@fer3.com] En nombre de dw
Enviado el: jueves, 25 de octubre de 2007 1:10
Para: NavList
Asunto: [NavList 3551] Re: Marq St. Hilaire - Altitude intercept method
Perhaps the equation you cite:
sin H = cos B cos Dec cos ( GHA-L ) + sin B sin Dec
Should be GHA+L, using the conventions you give.
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