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    Re: Bubble sextant instructions
    From: Nigel Gardner
    Date: 2001 Dec 12, 8:29 AM

    Like many on in this group I should imagine I have taken more sights than I
    have had hot dinners with the Mk9 so permit me a couple of tips, don't make
    the bubble too small for stars as the surface tension makes a small bubble
    sluggish, in poor conditions dont be afraid to guess where the body is if
    it is going in or out of cloud for example and finally you do not need to
    apply Semi-Diameter correction. If you can scrounge a copy of an Air
    Almanac (which year does not matter) it will give you a composite table of
    corrections that will be quite accurate enough.
    
    
    NG
    

       
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