This is the fourth set of studies in the Variorum series by David King, a leading authority on the history of astronomy in Islamic civilization and on medieval astronomical instruments, European as well as Islamic. The first of the eleven studies collected here deals with medieval instruments in general, as precious historical sources. The following papers focus on individual astrolabes from the European Middle Ages and early Renaissance that are of singular historical importance. Two look at the origins of the simple universal horary quadrant and the complicated universal horary dial (navicula). The collection concludes with a list of all known medieval European astrolabes, ordered chronologically by region. Three "landmark" astrolabes are discussed: (1) the earliest known European astrolabe from 10th-century Catalonia, that milieu in which the astrolabe first became known to Europeans; (2) an astrolabe from 14th-century Picardy bearing numerals written in monastic ciphers as well as a later dedication mentioning two friends of Erasmus; (3) the splendid astrolabe presented in 1462 by the German astronomer Regiomontanus to his patron Cardinal Bessarion, with its enigmatic angel and Latin dedication, here presented in the context of other astrolabes of similar design from 15th-century Vienna.
Table of Contents
Contents: Preface; Part I General: Astronomical instruments between East and West. Part II The Earliest European Astrolabe: The earliest known European astrolabe in the light of other early astrolabes. Part III An Astrolabe Featuring a Remarkable Number Notation: Rewriting history through instruments: the secrets of a medieval astrolabe from Picardy. Part IV More Individual European Astrolabes: The medieval Catalan astrolabe of the Society of Antiquaries, London (co-authored with Kurt Maier); A remarkable Italian astrolabe from ca. 1300 - witness to an ingenious tradition of non-standard astrolabes; An astrolabe from Einbeck datable ca. 1330. Part V Astrolabe Stars: The star-names on three 14th-century astrolabes from Spain, France and Italy. Part VI Universal Horary Devices: A vetustissimus Arabic text on the quadrans vetus; 14th-century England or 9th-century Baghdad? New insights on the elusive astronomical instrument called the Navicula de Venetiis. Part VII Two Renaissance Astrolabes: The astrolabe depicted in the intarsia of the studiolo of Archduke Frederico in Urbino; The astrolabe presented by Regiomontanus to Cardinal Bessarion in 1462 (co-authored with Gerard L'E. Turner). Part VIII An Aid to Future Research: An ordered list of European astrolabes up to ca. 1500; Index.
‘[This] is a heterogeneous collection, offering readers insight into specific medieval sundials and Renaissance astrolabes in addition to the astrolabes from medieval Europe advertized by the book title… [King] has given us a sample of his scholarship and methods of interrogating scientific instruments in this volume’ – Aestimatio 11 (2014)
'The articles in this book are illustrated with excellent photographs. The content of each one is completed with a comprehensive bibliography. I liked the book and I strongly recommend it. Its reading, though not easy, is indispensable to those who want to unravel the secrets of astronomical instruments. Professor King gives us a taste of how we can do so’ - Suhayl
'... le recueil montre a suffisance la nécessité de considérer les instruments astronomiques comme des sources a part entière, non seulement pour l’histoire des sciences et de la technique, mais encore pour l’histoire de l’art, l’épigraphie, la linguistique ou encore l’histoire culturelle, pour peu que l’on s’intéresse aux usages de la science et de la technique dans un milieu donné. Nul doute non plus que ce recueil ne serve a introduire les profanes dans un champ d’études fascinant qui réserve encore de nombreuses surprises’ - Francia-Recensio