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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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    参考文献

    1. [1]Sky & Telescope — Understanding Telescope Magnification— Sky & Telescope
    2. [2]Cloudy Nights — Understanding Exit Pupils— Cloudy Nights
    3. [3]Tele Vue Optics — Eyepiece Specifications & Exit Pupil Guide— Tele Vue Optics, Inc.
    4. [4]Celestron — Telescope Magnification & Eyepiece Guide— Celestron, LLC