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    From: Greg B
    Date: 2006 Feb 28, 12:44 -0500

    Good Day to the List!
    My name is Greg & I have an interest in historical navigation. In addition
    to enjoying
    sailing I belong to a local Rev. War group, where I have the persona of a
    surveyor.
    Since surveyors also had to know how to determine lat/Lon I have started to
    teach myself the Basics. At this point I have hit a small snag. It should
    be pretty straight forward to shoot Polaris But living inland I need to use
    a artificial horizon a "well leveled mirror" as the books put it, and I
    can't seem to come any closer than 3-4 NM. The sextant I am using is a
    MAC(" Measure All Co. " - Japan ) that I bought off of  a retiring blue
    water boater on eBay; it seems to be in quite good condition, and I think
    $250 was a fair price. All I can think is that there is something wrong
    with the way I am setting it up. May I ask for some guidance please:
    
    
            Why does the star look "smeared" through the mirror & 'OK' during
            a normal horizon sight?
    
            How optically flat does the mirror really need to be?
    
            How close (or far away) from the mirror should you need to be?
    
            Is a good quality carpenter?s level accurate enough?
    
    
    Many thanks to the list in advance!
                                    -Greg
    
    
    
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