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    Re: Wobbly Prime Meridian
    From: John Huth
    Date: 2010 Nov 22, 19:37 -0500
    Sort of like quoting the right ascension of Polaris.....

    On Mon, Nov 22, 2010 at 4:55 PM, Peter Fogg <piterr11@gmail.com> wrote:
    There is a moral in this tale and it is this:
    Nothing, but nothing in the real world, is quite accurate.  T'aint possible.  No can do.
    Perfect accuracy belongs to the conceptual or imaginary universe; that of ideas and definitions.
    So endeth the lesson.

    Scott O'Connor wrote:

    I recently stood astride the Prime Meridian at Greenwich and fired up my Garmin Nuvi GPS. The coordinates read N 51 28.674' W 000 00.088'. Why the error? Is this due to nutation wobble? If so, when would it read exactly zero? How far off is this in nautical miles? It would appear to be far too minimal to consider for celestial nav work with a sextant, but is this a consideration? thanks very much.

    Keeping up with the grind
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