historyontheorientexpress: A detailed diagram of an eclipse from an Ottoman Treatise on Astronomy, Kitab Madkhal al-Nujum and Kitab Usul al-Malahim fi Ahkam al-Nujum, Istanbul, 1479
historyontheorientexpress: A detailed diagram of an eclipse from an Ottoman Treatise on Astronomy, Kitab Madkhal al-Nujum and Kitab Usul al-Malahim fi Ahkam al-Nujum, Istanbul, 1479