A Recently Discovered Sixteenth-Century Spanish Astrolabe
Roberto Moreno|Koenraad Van Cleempoel|David A. King
Astrolabes serving all latitudes are very rare. This recently rediscovered sixteenth-century Spanish example raises a host of questions which can only be addressed by considering other such instruments and the few available textual sources. The traced back, not always directly, to an invention eleventh-century Andalusian astronomer Ali ibn Khalaf, preserved in Old Castillian Libros del Saber de Astronomía King Alfonso X. design this particular astrolabe engraving on it investigated detail, as yet unidentified maker is associated with circle around Juan Herrera, architect palace-monastery San Lorenzo El Escorial.
Annals of Science