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    Re: Latitude of prime vertical sight
    From: Frank Reed CT
    Date: 2007 Jul 30, 16:31 -0700

    Hi Paul. You wrote:
    "I'm new to navigation, and am doing some work on the usage of prime
    vertical sights. I know it gives longitude, but if you knew the time
    of sunrise, is it possible to obtain a value for lattitude too? "
    Welcome aboard. I'm not entirely sure what you're asking here. Are you
    saying that we've recorded the local time of sunrise? Perhaps at
    sunrise we look at a watch and note that the time is 0701 and later
    when we take the time sight the time is 0914. With that difference in
    time and the measured altitude for the time sight, you could
    presumably calculate the latitude. Is that what you have in mind?
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