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    Re: John Karl's Celestial Navigation in the GPS Age
    From: Aonghus O Concheanainn
    Date: 2018 Apr 30, 15:43 -0700

    Robert,

    Thank you for prompt reply to my query.

    See attached photos of pages 53 & 55 from book with exercise in question. It reads 'Entering HO229 with interpolated declination of 18 degrees 8.5 minutes gives Hc = 37 degrees 33.5 minutes with Zn = 321 degrees' but I can't find this in Lat Contrary Name to Dec of HO229 for LHA = 32 degrees page, AP Lat S24 and Dec N18.

    Answr is probably embarrassingly simple but I've started so I'll finish!

    Aonghus.

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