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    Re: Pub 229
    From: Chris Caswell
    Date: 2017 Dec 9, 14:17 -0800

    I have some bubble sextants that you can align the sun tanget to the bubble, per the original manuals.  Some of sextants have bubble centers that are not clear enough and diffuse the image (I don't know why, unless it is age) so it is much easier to use that method.

    Chris in VT

       
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