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    Re: Swinging the arc: two methods, one preferred
    From: Paul Hirose
    Date: 2011 Jan 06, 16:58 -0800

    Hewitt Schlereth wrote:
    > To take the sun as an example: when you have it at the right altitude,
    > does the horizon appear to slide around the edge of the sun's disk,
    > just touchng it; as it were, stroking it?
    
    In my opinion rocking a sextand is one of those skills most easily
    learned by not attempting to think too hard. I went out this afternoon
    and shot the Sun (fairly low), and also a little cloud conveniently
    placed at a high altitude. Neither body was difficult to swing through
    the horizon, I wasn't conscious of using different movements for these
    bodies, and I couldn't begin to tell you how my rotation axis was oriented.
    
    If you have a clear picture of the body remaining more or less centered
    as the horizon approaches (or passes through) then retreats, I think
    your hand will learn to make it happen without conscious effort. Perhaps
    the books err in attempting to tell you how to move the sextant instead
    of making clear what you should see in the scope. Or the imagery is
    confusing. Some diagrams show the Sun swinging back and forth as if it's
    at the end of a little pendulum.
    
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