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    Re: lat/long from meridian passage
    From: George Huxtable
    Date: 2011 Jan 25, 07:58 -0000

    Jim Wilson wrote-
    
    I'll attach a diagram which shows that N-S vessel movement or declination
    change affects time of meridian passage. Time of highest altitude is
    different from this.
    
    ==============
    
    Hasn't Jim said that the wrong way round? From a fixed longitude, the time
    of meridian passage is unchangeable, affected only by the rotation of the
    Earth and the position of the Sun.
    
    What changes, depending on the North-South speed of the vessel, and the
    North-South motion of the Sun in declination, is the time of highest
    altitude.
    
    George.
    
    contact George Huxtable, at  george{at}hux.me.uk
    or at +44 1865 820222 (from UK, 01865 820222)
    or at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.
    
    
    
    
    

       
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