Porter, Dot2023-05-232022-08-232022-07-182022-08-23https://repository.upenn.edu/handle/20.500.14332/46769youtubeAstronomy -- Early works to 1800AstronomyCodicesDiagramsManuscriptsArabicManuscriptsMedievalAstrophysics and AstronomyHistory of Science, Technology, and MedicinePenn Library's LJS 388 - [Mulakhkhaṣ fī al-hayʼah]. = [ملخص في الهيئه]. (Video Orientation)Media