• Zij-i sultani زيج سلطانى
    • Zij-i sultani زيج سلطانى

    • Zij-i sultani زيج سلطانى

    • This is astronomical table and star catalogue that was published by Ulugh Beg in 1438–1439. The book is joint effort of prominent muslim astronomers of time including Jamshid al-Kashi and Ali Qushji with support and contribution of Ulugh Beg at Samarkand's Ulugh Beg Observatory. Check details and download on OPENN https://openn.library.upenn.edu/Data/0032/html/ms_or_001.html Alternatively download from Archive.org
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