Greek astronomical calendars. V: The motion of the Sun in the Parapegma of Geminos and in the Romaka-Siddhānta
type: Item
instance of: scholarly article
title: Greek astronomical calendars. V: The motion of the Sun in the Parapegma of Geminos and in the Romaka-Siddhānta
zbMATH Open document ID: 0573.01001
DOI: 10.1007/BF00348428
published in: Archive for History of Exact Sciences
publication date: 1985-01-01T00:00:00Z
review text: Greek and Indian texts happen to tell the number of days the Sun needs to move along the Ecliptic by one sign \((30^ 0)\) for each 12 signs. A finite Fourier series can specify this movement in terms of a geocentric eccentric circular orbit. The values of the eccentricity and the apogee derived in this way reveal which particular version of the geocentric theory underlies a given text.
Mathematics Subject Classification ID: 01A20
Mathematics Subject Classification ID: 01A32
Mathematics Subject Classification ID: 85-03
zbMATH DE Number: 3914275
zbMATH Keywords: geocentric solar orbit
zbMATH Keywords: Fourier analysis
zbMATH Keywords: finite Fourier series
reviewed by: Heino Eelsalu
MaRDI profile type: Publication
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author: B. L. van der Waerden
description: scientific article; zbMATH DE number 3914275