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    Re: Calculating the time when GHA is equals zero?
    From: Tony Oz
    Date: 2020 Mar 13, 12:37 -0700

    Dear Steve, thank you for your trust in me!

    I'm not an authoritative source on CN, I'm just an enthusiast and a student of it.

    What I know for sure - all the data in an almanac is intended to be used for the linear interpolation of the values between the tabulated ones. The "method" I used to solve your question is just one of many available ways. It is easier if you have a pocket calculator but also doable with a pencil and paper.

    To tell you more about the other - "the official" - way, involving the v and d coefficients I must be sure we are looking at the same Almanac. Is this one what you use? I prefer the other brand of almanacs.

    I will be glad to answer any your question - it helps me to see CN problems more clear. :)

    Warm regards,
    60°N 30°E

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