By Jose Chabas, Bernard R Goldstein

A Survey of eu Astronomical Tables within the overdue center Ages is a primary try and classify and illustrate the varied astronomical tables compiled from concerning the tenth century to the early sixteenth century within the Latin West. The compilation of astronomical tables was once an important and dynamic highbrow firm. those tables reply to a large choice of astronomical difficulties and computational wishes, and include a number of creative strategies proposed by means of astronomers over the centuries. within the absence of algebraic notation and mathematical graphing innovations, a desk was once frequently how one can transmit unique info to the reader. certainly, an astronomical desk isn't really a only a record of knowledge, yet a based option to current numerical details of astronomical curiosity. ..".the entire publication that is a superb consultant for all people who are attracted to the historical past of medieval eu astronomy and, particularly, in medieval astronomical tables." Julio Samso, collage of Barcelona

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Venice: Petrus Liechtenstein. (Alfonso de Córdoba) 1504 Tabule directionum profectionumque. Venice: Petrus Liechtenstein. (Regiomontanus) A Classification of Astronomical Tables As mentioned above, a huge number of astronomical tables were compiled in the Middle Ages and they were presented in a great many different ways. , Kennedy 1956a, Toomer 1968, and F. S. Pedersen 2002) group them by their contents, but there is no definite consensus on the categories proposed. We offer the following classification for such tables and we give examples of some tables, fully aware that they represent only a tiny fraction of those produced in the Middle Ages.

150 0 ... 120 0 ... 90 30 90 0 Corde mediate (°) 0;31,25 1; 2,50 ... 30; 0, 0 ... 51;57,42 ... 59;59,52 60; 0, 0 Tables. 1A displays an excerpt of the table ascribed to John of Lignères. The most extensive table of this type in a 14th-century manuscript that we have found is in Paris, Bibliothèque nationale de France, MS lat. 7316A, ff. 89r–111r, where the argument is given at intervals of 1′, thus displaying 2,700 entries for the sine of the argument. At the end of this table there is a trigonometric circle, similar to that displayed in Figure 1, and a small text which includes the name of John of Murs (f.

Latitudes 10. Stations and retrogradations 11. Visibility of planets and fixed stars 12. Parallax 13. Syzygies 14. Planetary conjunctions 15. Eclipses 16. Star lists 17. Geographical lists 18. Astrology 19. Miscellaneous To illustrate tables in various categories, we selected a few of them that are reproduced here (in some instances the entire table, while in others an excerpt only), in each case taking from the table as much as is necessary to establish its character and to identify the extremal values of the entries or the parameters on which the table is based, for our aim here is not to edit tables but to give the reader the tools to identify and understand them.

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