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The pair of startrail long-exposure photos compare the winter and summer sky as seen from Alamut Valley of Iran. Notable on the left is the Milky Way and trails of the summer constellations Scorpius and Sagittarius, while the brightest star of our night Sirius and stars of constellation Orion are notable in the right side image. Oshin Zakarian

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  • Hebert Marc Reply

    Superbe,
    cette image permet de comprendre que l’axe de rotation de la Terre reste parallele à lui-même tout au long de l’année,
    bravo,
    un grand merci aux contributeurs de ce site

    October 20, 2012 at 4:15 am

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