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    Re: Celestial Navigation on the surface of Mars
    From: Brad Morris
    Date: 2018 Nov 10, 12:15 -0500
    Sun SD from Mars: 10.5'

    An interesting observation is available.  Earth to Earth's Moon lunar!  Similar to a Jovian satellite observation.  But its a "lunar" from a strange perspective, as the two objects rotate about the barycenter.  We should be able to distinguish the two objects and their apparent distance.  

    Phobos, with an orbital period of 8 hours, and Demos, with an orbital period of 30 hours, could provide excellent longitude resolution.  Even more so if the Phobos/Demos distance is utilized.  360 degrees in 8 hours is 45 degrees per hour (45'/ minute), which compares to our more pedestrian 0.5°/hour.  

    But if its a one way trip, do you go?

    Brad





    On Sat, Nov 10, 2018, 10:10 AM Geoffrey Kolbe <NoReply_GeoffreyKolbe@fer3.com wrote:

    Greg Rudzinski wrote:

    "The length of day on Mars is very close to that of Earth.  I would propose a Mars second as 1.027 Earth seconds.  A Mars watch could be made out of an Earth watch just by slowing a hair.  Earth latitude and longitude could be used on Mars by  using a nautical mile of .5324  of the Earth nautical mile (close to a kilometer). "

    OK, I am game.... when do we go?

    Geoffrey Kolbe

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