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    Dr. Alexandre Santerne 🌍 (alexsanterne@astrodon.social)'s status on Sunday, 18-Dec-2022 23:45:52 JSTDr. Alexandre Santerne 🌍Dr. Alexandre Santerne 🌍
    in reply to

    2️⃣
    The method is quite straightforward: as the Earth rotates along the celestial poles, a long-exposure photography ? of the night sky ? will reveal that stars are trailing. ?

    in short, it would like like this ⤵️

    In conversationSunday, 18-Dec-2022 23:45:52 JST from astrodon.socialpermalink

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