Almucantar

by Kunitzsch, Paul

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Almucantar , also almacantar, is the Latin term used by Western astronomers to denote, on the plates of the planispheric astrolabe, the circles parallel to the horizon for a given geographical latitude. The term derives from Arabic al-muqanṭara , pl. al-muqanṭarāt , in the phrase al-dāʾira al-muqanṭara , that is, “the circle formed like the arch of a bridge (qanṭara) .” These circles could be drawn for each of the eighty-nine degrees of altitude above the horizon, with 90° being the zenith, or …

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Summary

Almucantar , also almacantar, is the Latin term used by Western astronomers to denote, on the plates of the planispheric astrolabe, the circles parallel to the horizon for a given geographical latitude. The term derives from Arabic al-muqanṭara , pl. al-muqanṭarāt , in the phrase al-dāʾira al-muqanṭara , that is, “the circle formed like the arch of a bridge (qanṭara) .” These circles could be drawn for each of the eighty-nine degrees of altitude above the horizon, with 90° being the zenith, or for increments of two, three, five, or

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Article Information

Publication Statements

  • Publisher(s):Brill
  • Language:eng

Edition Identifiers

  • wc:ALei857

Subjects

eng Islam

Writers

Kunitzsch, Paul

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