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altazimuth

[al-taz-uh-muh th]
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noun Astronomy.
  1. an instrument for determining both the altitude and the azimuth of a heavenly body.

Origin of altazimuth

First recorded in 1855–60; alt(itude) + azimuth
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for altazimuth

Historical Examples

  • We saw that the altazimuth employed at Upsala had no lenses.

    Scientific American Supplement, No. 611, September 17, 1887

    Various

  • The altazimuth can thus determine the altitude and azimuth of objects, hence the name.

  • On his return home he settled at Westbury, where he erected an altazimuth by Troughton, with a two-and-a-half-foot circle.

    The Royal Observatory Greenwich</p>

    E. Walter (Edwared Walter) Maunder

  • This pillar is the support of Airy's altazimuth, and very nearly marks the place where Flamsteed set up his original sextant.

    The Royal Observatory Greenwich</p>

    E. Walter (Edwared Walter) Maunder

  • For many years the instruments in regular use were two only, the transit circle and the altazimuth.

    The Royal Observatory Greenwich</p>

    E. Walter (Edwared Walter) Maunder


British Dictionary definitions for altazimuth

altazimuth

noun
  1. an instrument for measuring the altitude and azimuth of a celestial body by the horizontal and vertical rotation of a telescope

Word Origin

C19: from alt (itude) + azimuth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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