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    Re: Raw data for bubble
    From: Bill B
    Date: 2007 Mar 13, 23:02 -0500

    Bill queried:
    >> If I am that sure of my latitude, why
    >> not use a time site to extract longitude directly?
    Peter kindly responded:
    > You would need a number of bodies to get a fix. Here you need only
    > one, usually the sun (although, as with meridian passages, any body
    > can be used, assuming you can see it and the horizon).
    > Its an alternative to a round of sights of stars at dawn or dusk; a
    > way to establish a position line that is a local line of longitude
    > using the one sight. Or, to be precise(!), the one series of sights of
    > one body over five minutes of time.
    I'm thinking latitude known, the time sight accomplishes the same thing. As
    would a current LOP reduction with a true compass bearing of 90/270 to the
    body.  In all cases, the further off you AP latitude, the further off your
    > There is one limitation in practice - its a summer-time only trick. In
    > winter months you may not find the sun at 90 or 270d.
    LOL.  Ya think?
    Thanks Peter
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