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    Re: CelNav without sextant
    From: Alexandre Eremenko
    Date: 2004 Nov 2, 14:15 -0500

    Timing meridian passage is very imprecise.
    (How do you intend to detect this moment?
    With your compass?)
    Even WITH a sextant it is hard to time a
    meridian passage with reasonable precision.
    One can probably improvise something crude
    to measure altitudes, that it to replace sextant,
    but I suppose this will be also VERY imprecise.
    My question was related to reasonably precise
    methods (of roughly the same order in
    precision as the usual methods involving a sextant).
    So far I see only those two mentioned in my previous message.
    (timing occultations and rise/set).
    On Tue, 2 Nov 2004, Mike Boersma wrote:
    > Given GMT and an almanac, you can still do a noon sight for latitude and
    > longitude (use the equation of time on the daily page to establish

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