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    Re: Hc by Azimuth Diagram - finally
    From: Greg Rudzinski
    Date: 2013 Aug 3, 11:20 -0700

    Hanno,

    Here are graph results for a low altitude observation of Venus from yesterday.

    UT 03:58:36 8/3/2013
    Lat 34* 10.5' N
    Dec 7* 29.1' N
    LHA 86* 37'
    C1 = .072
    C2 = .82
    C3 = .05
    C1+C3 = .122

    Arc Sin .122 = 7* 00' Hc

    Palm Pilot Program = 6* 59.1' Hc

    Your graph is easy to use. Got the correct Hc on the first try :) I will recommend that a sin trig table be used for the final Arc Sin of the C1&C3 sum rather than the graph for an improved Hc. The graph beats the 10" slide rule here I think.

    Greg Rudzinski
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