رواد رواد علم الفلك في العصر العباسي أولاد موسى بن شاكر أنموذجاً
Is astronomy in the Abbasid era one of the sciences that Muslims developed at that time? The restriction of students at the hands of a large number of students, which increased the development and increase the value of monitoring mechanisms and their outstanding efforts in support and development of the Arab civilization of Islam