In 2008, after 13 years of preparation, the Generalitat of Catalunya finished the publication of the 10 volumes of the Dietaris de la Generalitat de Catalunya. The Dietaris, as well as a closely related source, the llibre de Jornades 1411/1484 de Jaume Safont, cover the period of 1411 to 1539. In this article, we examine astronomical references contained in these two sources, and place them in their historical context. Our main focus lies on astronomical phenomena that have not previously been published in the astronomical literature. In fact, relatively few astronomical records are accessible in Spanish medieval and early modern history, and our paper intends to fill this gap partially.
See Bernard R. Goldstein“Medieval Observations of Solar and Lunar Eclipses,” Archives Internationales de l’Histoire des Sciences 29 (1979) 101–156; F. Richard Stephenson Historical Eclipses and Earth Rotation (Cambridge University Press 1997); idem “Investigation of Medieval European Records of Solar Eclipses” Journal for the History of Astronomy 41 (2010) 95–104.