File:Tablas Alfonsíes - Lignères (1322) - P093.png

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Alphonsine Tables - First and last visibility of the 5 planets

Summary

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Description
Español: Traducción desde las tablas del año 1322 (Tablas de Alfonso), obra de Juan de Lignères. Agregüé unas columnas en el actual sistema decimal correspondiente al sistema sexagesimal ptolemaico.

Esta tabla para la visibilidad de los planetas se refiere a dos fases (salida en la mañana y puesta en la tarde) de los tres planetas superiores y cuatro fases (salida en la tarde, puesta en la mañana, salida en la mañana y puesta en la tarde) de los planetas inferiores. En cada caso, hay entradas para los inicios de los 12 signos zodiacales.

La misma tabla se puede encontrar en conjuntos anteriores, incluidas las Tablas Toledanas (Pedersen 2002, págs. 1530-1537) y el zij de al-Battānī (Nallino 1899-1907, 2:142-143). Probablemente deriva de una tabla de las Handy Tables de Ptolomeo calculada para el clima IV, para una latitud geográfica de aproximadamente 36° (Chabás y Goldstein 2012, pp. 124-126. Ver también Almagesto, Libro II - Capítulo 6) y, como fue el caso con la tabla de las retrogradaciones planetarias, parece ser un resto inútil. Observamos que la salida vespertina de Mercurio se refiere a 152°, en lugar de 112°.

Una descripción de esta tabla se encuentra en el Capítulo 42 de los cánones que comienzan con Priores astrologi (ver Saby 1987, págs. 266-267).

NdT: del libro "The Tables of 1322 by John of Lignères. An Edition with Commentary" de José Chabás y Marie-Madeleine Saby. Págs. 92-93. 2022, Brepols Publishers n.v., Turnhout, Belgium.
Date
Source Own work basado en los datos del "The Tables of 1322 by John of Lignères. An Edition with Commentary" de José Chabás y Marie-Madeleine Saby.
Author
Fernando de Gorocica  (1962–) wikidata:Q104764450
 
Fernando de Gorocica
Description Argentine amateur astronomer
Date of birth 2 August 1962 Edit this at Wikidata
Location of birth Buenos Aires
Work location
Ciudad Jardín Lomas del Palomar; Villa Gesell Edit this at Wikidata
Authority file
creator QS:P170,Q104764450

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current11:53, 2 November 2023Thumbnail for version as of 11:53, 2 November 20231,309 × 903 (347 KB)Fernando de Gorocica (talk | contribs)Uploaded own work with UploadWizard

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