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    Re: What precision is required in cel nav?
    From: Henry Halboth
    Date: 2015 Jul 19, 14:43 -0400
    John,

    On August 15, 2009, I posted a reply on a thread entitled "standard deviation", regarding accuracy of celestial
    navigation. You might find this of some interest.

    Henry

    On Sun, Jul 19, 2015 at 12:26 PM, John Brown <NoReply_JohnBrown@fer3.com> wrote:

    One Navlist discussion on the accuracy of sextant sights at sea happened back in September 2010.

    A pdf document of a study on this topic was attached to George Huxtable's post g14011.  The average observational error, by experienced professionals on the relatively stable platform of a big ship's bridge was thought to be around 0.7' of arc.

    John

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