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    Re: Universal astrolabe for finding bearing
    From: Joe Plazak
    Date: 2026 Jan 7, 16:22 -0800

    See also "Hyatt's Celestial Coordinator," which came in both stereographic and orthographic projections:  

    https://airandspace.si.edu/collection-objects/computer-celestial-coordinator-hyatts/nasm_A19771763000

    https://airandspace.si.edu/collection-objects/computer-celestial-coordinator-hyatts/nasm_A19771762000

    There is a copy of the manual available here:

    https://catalogs.marinersmuseum.org/media/Media/00002/2000-24-03%20Manual%20-%20Hyatt%20Cel%20Coord00636808217457391050.PDF

       
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