Graeco-Arabic Astronomy for Twelfth-Century Latin Readers

Ptolomeus et multi sapientum (Abraham Ibn Ezra Latinus) — Robert of Chester, Liber canonum, pt. II


This volume makes available two little-known twelfth-century Latin sources on mathematical astronomy: the anonymous Ptolomeus et multi sapientum… (c.1145), which is attributable to the famous Jewish astrologer Abraham Ibn Ezra, and the surviving second part of Robert of Chester’s Liber canonum, which accompanied the Tables of London (c.1150). Both texts are introductory-level works originally written to educate a Latin Christian audience in the concepts and techniques involved in computing with astronomical tables. They are here presented in critical editions with facing English translations. The accompanying introductions and in-depth commentaries elucidate their significance in the context of twelfth-century Latin astronomy.

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C. Philipp E. Nothaft, Ph.D. (2012), University of Munich, is a research fellow at Trinity College Dublin. He has published widely on the history of chronology, calendars, and astronomy in medieval Europe, including Medieval Latin Christian Texts on the Jewish Calendar (Brill, 2014).
Abbreviations and Manuscript Sigla

Part 1 Ptolomeus et multi sapientum

 1 General Characteristics
 2 The Tables of Pisa/Lucca
 3 Authorship
 4 Reception
 5 Transmission
 6 Editorial Principles

Ptolemy and Many among the Sages …
I On the Length of the Year
II On the Construction of Tables
III On the Motions of the Planets


Appendix: Description of C, fols. 75v–80v

Part 2 Robert of Chester, Liber Canonum, pt. II: Tables of London

 1 Sources and General Characteristics
 2 Structure and Style
 3 Transmission
 4 The Tables of London
 5 The Tables of Toledo
 6 Reception
 7 Editorial Principles

Robert of Chester, Book of Canons, Part II


Appendix: Additions to the Text in A and S

Institutes, libraries, specialists and scholars with an interest in history of science/astronomy.
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