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    Re: lunars with and without altitudes
    From: Henry Halboth
    Date: 2006 Nov 14, 10:55 -0500

    Hi Alex,
    My whole point, of course, being the accuracy of the DR Position and the
    "approximate" GMT. The simple fact is that, if you have confidence in your
    DR, there really may be little point in considering a Lunar Observation -
    given the potential inaccuracies of the latter, it may simply serve to
    confuse the issue. Better advice might be to keep the lead going and to
    maintain a sharp lookout, remembering always the four (4) Ls of navigation,
    i.e., Latitude + Longitude + Lead + Lookout.
    ----- Original Message -----
    From: "Alexandre E Eremenko" 
    Sent: Tuesday, November 14, 2006 8:55 AM
    Subject: [NavList 1710] Re: lunars with and without altitudes
    > There is one more little point:
    > Moon's alt and star's alt are needed for refraction.
    > Of course, one can compute these altitudes from the
    > DR place, and approximate GMT,
    > but then again the question of precision arises.
    > Alex
    > >
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