guides.how-to-read-planetary-hours.title

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データ保存なしローカル計算無料で使える即時結果
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    関連ガイド

    参考文献

    1. [1]Astronomical Algorithms, 2nd ed. — Jean Meeus (Chapter 15: Rising, Transit & Setting)— Willmann-Bell
    2. [2]USNO — Sunrise/Sunset Computation (planetary hour basis)— U.S. Naval Observatory