"Arabic" . "anwa" . "Islamic Medieval astronomy" . "astronomers" . "Islamic astronomy" . "astronomy in the medieval Islamic world" . "Muslim astronomers" . "Astronomy in the medieval Islamic world" . "medieval Muslim astronomer" . "Islamic astronomers" . . "medieval Muslim astronomers" . . "astronomer" . "astronomical" . "astronomy" . "the Islamic world of astronomy" . "Islamic methods" . "Falkiat" . "Arabic astronomy" . . "the medieval Islamic world" . "Astronomy in the medieval Islamic world" . "Persian astronomer" . "introduction of astronomy into the Islamic world" . "Persian astronomical instruments" . . "Arabo-Persian astronomy" . "Astronomy in the medieval Islamic world#Observatories" . . "astrologer" . "Persian astronomical traditions" . "Astronomy" . . . "medieval Islamic" . "Islam" . "Islamic Astronomy" .