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    Re: Star Identification
    From: Gary LaPook
    Date: 2008 Jul 30, 02:09 -0700

    Attached are some pages with infomation about the A-10 and the A-10
    a.
    
    gl
    
    bruce hamilton wrote:
    
    >I just received an A-10 that I got for cheap on E-bay. Well, most of one
    >as is is missing the averaging mechanism, but as I plan to use it with
    >my feet firmly planted on the ground, I don't need that bit. I also
    >managed to coax a bubble out of it too.  I must say that it is the best
    >thing for us urban dwellers with no horizon handy. I might get a
    >calibrated A-12 next as I love the concept. Put the body in the center
    >of the bubble and I have a reading. Very nice! I am a bubble sextant fan
    >now.
    >
    >I have one question for someone who has used one (A-10) before. What is
    >the use of the frosted glass that swings over the top of the bubble
    >column? Mine has some faint lines on it, but it seems to me that if the
    >body is in the bubble, no other reference is needed.  As well, it seems
    >to me if I peek to the left of the view, I could see a natural horizon,
    >if I had one. Is this possible or a pipe dream?
    >
    >Another question. Last night, I could get a reading from a single star
    >through a single whole in the clouds.  My star identification skills are
    >still poor, and those circumstances were beyond me. Is there a quick and
    >dirty way to take that single observation and find what star I was
    >looking at using the observation, an Almanac a watch and calculator?  I
    >think I found the star in the site plan section of Celest Nav on my palm
    >pilot, but I would like to be able to do it without.
    >
    >Thank You
    >
    >Bruce Hamilton
    >Vancouver, BC
    >
    >
    >
    >>
    >
    >
    >
    
    
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