File:Tablas Alfonsíes - Almagesto - Libro XII - Capítulo 8.png

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Captions

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Alphonsine Tables - Almagest - Book XII - Chapter 8 - Planetary Retrogradation

Summary

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Description
Español: Tabla de las Retrogradaciones Planetarias:

Agregüé unas columnas en el actual sistema decimal correspondiente al sistema sexagesimal ptolemaico.

Por otra parte, para que podamos investigar convenientemente en que punto sobre el Epiciclo esta cada planeta, cuando estos presentan la apariencia de estar estacionarios, dado que para las distancias en el intervalo entre la distancia media y la máxima o la mínima, hemos construido para tal propósito una tabla con 31 líneas y 12 columnas. Las dos primeras de estas columnas contendrán los números de la longitud media a intervalos de 6º (correspondientes al arreglo de las otras tablas). Las siguientes 10 columnas contendrán las distancias en anomalía corregida desde el apogeo aparente del epiciclo para cada uno de los 5 planetas: en cada caso la primera columna [del par (de columnas) para un planeta] contendrá la cantidad para la primera [posición] estacionaria, y la segunda columna la cantidad para la segunda [posición] estacionaria.

NdT: texto del Almagesto, Libro XII - Capítulo 7.
Date
Source Own work basado en los datos del Libro XII - Capítulo 8 del Almagesto de Claudio Ptolomeo. Traducción al inglés por Gerald J. Toomer.
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 Edit this at Wikidata
Work location
Ciudad Jardín Lomas del Palomar; Villa Gesell Edit this at Wikidata
Authority file
creator QS:P170,Q104764450

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