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    Re: UL vs LL: which is which when an artificial horizon is involved?
    From: John D. Howard
    Date: 2019 May 14, 11:46 -0700

    Tony,

    How I rember is this:

    Before noon the sun is rising so I put the sun below the AH image and after adjusting the sextant close, I allow the sun to rise into the AH image.  Rising - upper limb.

    Afternoon the sun is getting lower.  Put the sun above the AH image and let the lowering sun go down and touch.  Sun lowering - lower limb.

    John H.   41N   100W

       
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