Ancient and Medieval Values for the Mean Synodic Month

  title={Ancient and Medieval Values for the Mean Synodic Month},
  author={Bernard R. Goldstein},
  journal={Journal for the History of Astronomy},
  pages={65 - 74}
  • B. R. Goldstein
  • Published 1 February 2003
  • Physics
  • Journal for the History of Astronomy
In a paper published shortly before his death, Neugebauer reviewed the transmission of the standard Babylonian value for the mean synodic month (hereafter: M). 1 He restricted his attention to this value for M and did not consider its derivation from the observational record. In other articles and books that he wrote over the years Neugebauer discussed a variety of values for M, but he did not gather these data together in one place. Recently, I argued that the Babylonian values for the lengths… 

Figures from this paper

Geminus and the Length of the Month: The Authenticity of Intro. AST. 8.43–45
One perennial interest in the history of astronomy concerns the derivation, transmission, and reception of fundamental parameters. In a paper published shortly before his death, Otto Neugebauer
The Zoroastrian Persian Calendar in a Medieval Hebrew Treatise on The Jewish Calendar by Abraham bar Ḥiyya
This article exposes an analysis of the Zoroastrian Persian calendar in a 12 th century Hebrew book on the Jewish calendar (Sefer ha-‘Ibb�A r). The Hebrew treatise was composed by the polymath
John Holbroke, the Tables of Cambridge, and the “true length of the year”: a forgotten episode in fifteenth-century astronomy
This article examines an unstudied set of astronomical tables for the meridian of Cambridge, also known as the Opus secundum, which the English theologian and astronomer John Holbroke, Master of
Medieval Astronomy in Catalonia and the South of France: The ‘Improved’ Lunar Kalendarium of Friar Raymond (Ramón) Bancal (ca. 1311) and Its Predecessors
Durante la Baja Edad Media, una de las tareas mas comunes de los astronomos fue el calculo de los datos lunares, como sicigias y eclipses, que fueron utilizados comunmente por los practicantes de la
Beyond Binarism in Babylon
Abstract This contribution is part of a special issue on History and Human Nature, comprising an essay by G.E.R. Lloyd and fifteen invited responses.
The Revolution in Tidal Science
Exact tidal study extends back to a fourteenth century record containing sexagesimal times. Earlier commentators have taken these times to be high water. This study shows they are for the later


Mathematical astronomy in Copernicus's De revolutionibus
When I first laid out the framework for A History of Ancient Mathe matical Astronomy, I intended to carry the discussion down to the last applications of Greek astronomical methodology, i. e.
The Length of the Year in the Original Proposal for the Gregorian Calendar
In a note! published in this journal in 1974 I considered the origin of the length of the year in the Gregorian Calendar, concentrating in particular on the earliest proposal by Petrus Pitatus in
On the Babylonian Discovery of the Periods of Lunar Motion
A most impressive achievement in Babylonian astronomy was the development of lunar theories that yielded very good results enabling the Babylonians to compute lunar eclipses with great success. I
The Fragments of the Works of Yaʿqūb Ibn Ṭāriq
  • D. Pingree
  • Physics
    Journal of Near Eastern Studies
  • 1968
(ProQuest: ... denotes formulae omitted.)Ihe following collection of fragments and the succeeding article by E. S. Kennedy present all the material so far discovered relevant to one of the earliest
A Survey of the Toledan Tables
The aim of this paper is to give a description of the collection of mediaeval astronomical tables known as the 'Tabule Toletane' which shall suffice for their identification and also reveal their
The Provencal version of Levi ben Gerson's tables for eclipses
Le but de cet article est de presenter une version provencale jusque la inedite des tables et criteres pour eclipses que Levi ben Gerson composa en 1336 environ a la requete de plusieurs grands et
Calendar and Community