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    Artificial horizon
    From: Gary A. Mickus
    Date: 2011 Jan 24, 19:33 -0800

    On 1/20/11 shooting the sun using a Davis Mark 3 sextant and Davis artificial horizon filled with glycerol with the plate glass wind screens obtained Hs lower limb readings which were way too high. Examples: UTC 20:41'28" = 76 28', 20:49'30" = 76 20', 20:55'15" = 76 16'.

    What could be causing the high readings.?

    Thanks,

    Gary
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