Dot Porter, Curator, Digital Research Services at the University of Pennsylvania Library, offers a video orientation to Penn Library’s LJS 57, Astronomical anthology. This manuscript was written in Catalonia, ca. 1361, in Hebrew, and it is a collection of astronomical texts, including a copy of a treatise on the calendar originally compiled for Pedro IV, King of Aragon, with an almanac of oppositions and conjunctions of the sun and moon and predictions of lunar and solar eclipses; four short works by the 12th-century scientist Abraham Ibn Ezra on an introduction to astrology, choosing the most auspicious moment for a given activity, the zodiac, and astrology concerning humankind collectively; and a Hebrew translation of Ptolemy’s Almagest, with numerous tables, diagrams, and illustrations
You can see the full online facsimile of this work in Penn in Hand and you can download all of the images and metadata at OPenn. You can also download a copy of this video from ScholarlyCommons, the University of Pennsylvania’s open access institutional repository.