Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008ahes...62..553g&link_type=abstract
Archive for History of Exact Sciences (ISSN 0003-9519), Vol. 62, No. 5, p. 553 - 600 (2008)
Astronomy and Astrophysics
Astronomy
History Of Astronomy
Scientific paper
Analysis of planetary records from Goal-Year Texts, Almanacs and Normal Star Almanacs allows us to draw several conclusions about the composition of these texts. Firstly, the dates of Greek-letter phenomena records in the Almanacs and Normal Star Almanacs consistently agree with each other, implying that the same methods were used in the creation of each. Secondly, there is a high level of agreement between the planetary records in the Goal-Year Texts and Almanacs or Normal Star Almanacs, suggesting that the records found in the Goal-Year Texts could have been used in creation of the Almanacs and Normal Star Almanacs. Statistical analysis of the records shows that, if this were the case, the Babylonian astronomers consistently applied small corrections of a few days to the dates of events from Goal-Year records, and that records of planet-Normal Star distances at the time of a planetary passage remain unchanged between the various texts. Analysis of theoretical planetary data accros Goal-Year periods confirmed that it would be possible to use Goal-Year data in this way. The theoretical analysis, agreeing with the analysis of records from the texts, showed that small corrections would indeed need to be applied to dates, and that no correction would generally be necessary for planet-Normal Star distances
Gray M. K. J.
Steele Michael J.
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