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    Re: Navy MK 5 Octant Using Natural Horizon
    From: Alexandre Eremenko
    Date: 2012 May 1, 18:53 -0400

    Greg,
    
    > The index error doesn't have to be odd, even, or a whole number.
    
    It does not HAVE TO. But what if it IS ??
    You do not adjust it so it is what it is.
    
    > since the micrometer drum is scaled in even
    > minutes the index error is best determined to the nearest whole minute.
    
    No, it is determined to the nearest EVEN minute.
    
    > On my octant the true index error is
    > probably somewhere between 5' and
    
    Your observations suggest that it is within 0'2 from 6'.
    And thus you were lucky. If it were 5', your results would not be
    so good.
    
    And I am repeating y question again: how did you choose the
    values to preset?
    
    Alex.
    
    
    
    
    

       
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