File:Tablas Alfonsíes - MSS.7856 - P10b.png

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Captions

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Alphonsine Tables - Mean movement of the Sun

Summary

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Description
Español: Traducción desde las Tablas Alfonsíes, manuscrito 7856, obra de Juan de Sajonia (astrónomo). Agregüé unas columnas en el actual sistema decimal correspondiente al sistema sexagesimal ptolemaico. Corrección: las celdas en fondo rosa, son datos corregidos tomados del Incunable 1612, publicado por Erhard Ratdolt en 1483.

El movimiento medio diario del Sol, según el MSS/7856, el MSS/7326 y el INC/1612, es de 0° 59' 8,327033483", calculado en aquellas épocas (S. XIV) desde un año tropical de 365 días 5 horas 49 minutos 15,98049276 segundos, siendo los valores medios actuales de 0° 59' 8,33050575" para un año tropical de 365 días 5 horas 48 minutos 45,10 segundos. Diferencia entre ambos años tropicales: 30,88049276 segundos.

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 MSS/7856, MSS/7326 y 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 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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current14:05, 26 September 2023Thumbnail for version as of 14:05, 26 September 2023932 × 999 (235 KB)Fernando de Gorocica (talk | contribs)Uploaded own work with UploadWizard

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