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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Submarine celestial through periscope
From: Andrés Ruiz
Date: 2023 Mar 14, 11:57 +0100
Geocentric equatorial coordinates to rectangular coordinates
Right ascension: α
Declination: δ
x = r cosδ cosα
y = r cosδ sinα
z = r sinδ
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From: Andrés Ruiz
Date: 2023 Mar 14, 11:57 +0100
DaveP wrote:
"Regarding LOP navigation, Sumner, Marc St Hilaire methods, I was simply testing to try, unsuccessfully, to find some compatibility with the spheres of GNSS."
Me too.
Me too.
Geocentric equatorial coordinates to rectangular coordinates
Right ascension: α
Declination: δ
x = r cosδ cosα
y = r cosδ sinα
z = r sinδ
but the problem is r. The stars are far away, but satellites are not. Doppler effect affects GPS signals, and speed of light with star distances is important.
