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    Re: Another position fix from Moon photo
    From: Modris Fersters
    Date: 2025 May 6, 12:46 -0700

    Hello, Frank!

    You asked:

    In practical terms, how could we make this navigation technique more accurate? If we could improve it by a factor of ten, we would have position fixes to the nearest mile or a bit better and, critically, these are fixes with no horizon required --no visual "sea" horizon, no reflecting artificial horizon, no gravity-dependent bubble or inertial-system horizon-- no horizon at all. (..)The stars in the image, which I noticed were nicely oriented and relatively easy to identify, were just accidental. Could we do better if we took photos for this purpose with intention? Is there any reasonable way, besides using a traditional sextant, to extend this method to relatively larger angular separations, maybe up to 15°?

    It seems that you have some particular navigation method in your mind, that would allow to get position fix without the horizon. I will try to guess: is this position fix by artificial satellites?

    Modris F

       
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