Example image of eyePlorer eyePlorer map for 'Astronomy in medieval Islam': Arabic language Astronomy History of astronomy Islamic Golden Age Muslim world Al-Andalus Central Asia China History of India Middle East North Africa Science in medieval Islam Hellenistic civilization Indian astronomy Sassanid Empire Byzantine science Chinese astronomy Latin translations of the 12th century Mali Sankore Madrasah Science in Medieval Western Europe Aldebaran Alidade Almucantar Altair Azimuth List of Arabic star names Sky Star Spherical geometry Christian Easter Jew Lunar phase Passover Tropical year Athens Meton of Athens Metonic cycle Astronomer Moon Ptolemy Menelaus of Alexandria Spherical trigonometry Menelaus' theorem Right triangle Altitude Sun Trigonometry Muslim