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    Re: Bowditch (2002) Table 17
    From: Bill B
    Date: 2012 May 01, 03:15 -0400

    On 5/1/2012 2:06 AM, Gary LaPook wrote:
    > The purpose of the dip short of the horizon table always eluded me since
    > you need to know accurately the distance from you to the intervening
    > shoreline which means that you had to know where you were and if you
    > knew that then why are you taking celestial observations in the first
    > place.
    Like many of us, I practice from a known position for fun and
    proficiency (including using the sextant for coastal piloting). Target
    shooting versus plinking. I prefer a natural horizon from a boat, but
    that is not always available (weather included). A shore will do. An AH
    is a court of last resort for me. For those that are not near a large
    body of water dip short could be handy--if the opposing shoreline is
    equidistant to your position on all compass points :-)
    For others it seems the process is purely academic. For observations
    from a known position only the magnitude of the intercept matters.
    Towards or away, azimuth, and plotting is irrelevant unless something
    goes terribly wrong.
    Bill B.

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