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    Re: Practice CN on cruise ship
    From: Hewitt Schlereth
    Date: 2017 Oct 21, 11:02 -0700
    Norm, if you mainly want to check your progress with the sextant, I'd suggest Navimatics "Celestial" app; ($20 on Apple and Android). Its one quirk is you enter Index Error, rather than Index Correction. That is IE on the arc is entered +; IE off is entered -. 

    I use it in teaching and like it because it displays Ha, Ho, and Hc as well as Zn and Intercept. 

    Hewitt


    On Oct 20, 2017, at 6:33 PM, Norm Goldblatt <NoReply_Goldblatt@fer3.com> wrote:

    I, alas, must board my cruise ship the day of your class in SF. I bought a plastic sextant to practice at sea. Ill have my laptop, so what should I download in order to gather my data and see how close I come to my actual location? I know it will not be accurate, but I want the thrill of taking data and reducing it. I'd like not to pack an almanac if possible, relying on downloaded versions, if possible. I'm excited. I know the principles but not the practice?

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