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Directions of obscuration in Babylonian eclipse records
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
ID 1365908
Author(s) Gautschy, Rita
Author(s) at UniBasel Gautschy, Rita
Year 2012
Title Directions of obscuration in Babylonian eclipse records
Journal Journal for the history of astronomy
Volume 43
Number 4
Pages / Article-Number 479-489
Keywords archaeoastronomy, Babylonian eclipse records, coordinate systems, observational technique

This paper evaluates the question in which coordinate system the reported entrance and exit directions of the shadow were given in Babylonian eclipse records. It turns out that the angles were measurend in a simplified ecliptic coordinate system. For the determination of ecliptic position angles it is necessary to know the true northern point of the lunar or solar limb. A method using the distinctive features on the Moon is proposed for determing this true northern point.

Publisher Science history publications
ISSN/ISBN 0021-8286
Full Text on edoc No
Digital Object Identifier DOI 10.1177/002182861204300406
ISI-Number WOS:000310924900006
Document type (ISI) Article

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