File:Tablas Alfonsíes - INC.1612 - P049.png

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Captions

Captions

Alphonsine Tables - Beginning of the planetary movement from different longitudes from Toledo

Summary

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Description
Español: Traducción desde las Tablas Alfonsíes, Incunable 1612, obra de Juan de Sajonia (astrónomo) y publicado por Erhard Ratdolt en 1483.

Toledo se encontraba desde el meridiano occidental o de origen a 28° de longitud Este.

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

Corrección: las celdas en fondo verde claro, son datos corregidos a partir del Incunable 1612. En la primer subtabla ("Inicio del movimiento medio de la cabeza del Dragón") modifiqué las 3 primeras cantidades de la columna "2", dada la repitencia de dos valores en el resto de la columna. Luego en la columna "3" tomé la cantidad "41" de la tabla correspondiente (Mss/7856 Pág. 8) y en la cantidad siguiente, en la misma columna, 30' menos, es decir "11", y así sucesivamente hasta el final con los valores "41" y "11".

La era alfonsí se inicia el lunes 01.01.1252 a las 12:00 h (mediodía), DJ 2178351 (Día Juliano). Según la Editio Princeps la era alfonsí comienza el sábado 01.06.1252 a las 12:00 h (mediodía), coronación del Rey Alfonso X, luego de 152 días del comienzo según las tablas alfonsíes castellanas.
Date
Source Own work basado en los datos del INC/1612 de la Biblioteca Nacional de España.
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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current20:25, 30 September 2023Thumbnail for version as of 20:25, 30 September 20231,137 × 918 (251 KB)Fernando de Gorocica (talk | contribs)Uploaded own work with UploadWizard

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