Encyclopaedia of Islam, Second Edition

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(2,323 words)

(a.), a technical term in a number of different disciplines.

1. In astronomy.

Here it corresponds to Gr. διάμετρος, in the Almagest άχρόνυκτος, Lat. oppositio, the term for the opposition of a planet and the sun or of two planets with one another. In opposition, the difference in longitude between the two heavenly bodies is 180°; while the modern use is to take no note of the deviations of latitude from the ecliptic, al-Battānī expressly emphasises ( Opus astronomicum, ed. Nallino, iii, 196) that we can only have the true muḳābala when both bodies are either in the ecliptic itself or…

Cite this page
Hartner, W., Rosenthal, F. and Heinrichs, W.P., “Muḳābala”, in: Encyclopaedia of Islam, Second Edition, Edited by: P. Bearman, Th. Bianquis, C.E. Bosworth, E. van Donzel, W.P. Heinrichs. Consulted online on 15 July 2024 <http://dx.doi.org/10.1163/1573-3912_islam_COM_0786>
First published online: 2012
First print edition: ISBN: 9789004161214, 1960-2007

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