maragheh observatory

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Maragheh observatory (Persian: رصدخانه مراغه Rasad Khaneh) is an ancient astronomical observatory, which was established in 1259 by Nasir al-Din al-Tusi, an Iranian scientist and astronomer. Located in the heights west of Maragheh, East Azarbaijan province, Iran, it was once considered one of the most prestigious observatories in the world
maragheh observatory