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    Re: Wobbly Prime Meridian
    From: Richard B. Langley
    Date: 2010 Nov 22, 10:42 -0400

    See:
    
    http://www.nmm.ac.uk/explore/astronomy-and-time/astronomy-facts/history/the-longitude-of-greenwich
    
    -- Richard Langley
    
    Quoting Scott O'Connor :
    
    > 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.
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    ===============================================================================
      Richard B. Langley                            E-mail: lang---.ca
      Geodetic Research Laboratory                  Web: http://www.unb.ca/GGE/
      Dept. of Geodesy and Geomatics Engineering    Phone:    +1 506 453-5142
      University of New Brunswick                   Fax:      +1 506 453-4943
      Fredericton, N.B., Canada  E3B 5A3
          Fredericton?  Where's that?  See: http://www.city.fredericton.nb.ca/
    ===============================================================================
    
    
    
    
    
    
    

       
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