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    Re: Formulas to Compute LHA
    From: Gary LaPook
    Date: 2009 Jun 28, 01:31 -0700

    That is an example of a time diagram that I mentioned but I have
    always seen them looking from the north pole with west being clockwise
    but it works either way to help visualize the relationships.
    
    gl
    
    On Jun 28, 12:53�am, Bill  wrote:
    > Andrew wrote regarding time diagrams:
    >
    > > I am interested in this diagram,� where can I find it?
    >
    > I am not certain this is what you are looking for as it is not called "time
    > diagram", but the attached does make LHA a bit more digestible for me. It is
    > from Susan P. Howell's book "Practical Celestial Navigation" which I
    > purchased from Celestair. �Other texts I own (but are sadly in storage far
    > away) may use the same diagram but in the opposite rotation. �The end result
    > is the same.
    >
    > A question for the list. �When teaching at Purdue I recall copies from a
    > book could me made for educational purposes, and "deju duh" (the Indiana
    > version of "deju du) causes me to think there was a limit on the number of
    > copies. �Am I skirting violation of copyright law by postings excerpts? If
    > so, would it be legal to send just one copy off list?
    >
    > Thanks
    >
    > Bill B
    >
    > �LHA Diagram.jpg
    > 126KViewDownload
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