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a territory of the Russian Federation in central Asia. 101,000 sq. mi. (261,700 sq. km).
Capital: Barnaul.


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  • Altazimuth

    an instrument for determining both the and the of a heavenly body. Historical Examples 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 E. Walter (Edwared Walter) Maunder We saw that the altazimuth employed at Upsala had no lenses. Scientific American […]

  • Altazimuth mount

    altazimuth mount altazimuth mount A mounting for astronomical telescopes that has separate axes for horizontal and vertical rotation. Because celestial objects move in arcs across the sky, tracking their motions with an altazimuth mount requires adjustments of both axes. Compare equatorial mount.

  • Altazimuth coordinate system

    altazimuth coordinate system altazimuth coordinate system (āl-tāz’ə-məth) The coordinate system in which a celestial object’s position is described in terms of its altitude and azimuth. Like celestial latitude and longitude, and declination and right ascension, the altitude and azimuth coordinates are used to map objects in the sky. Unlike the other two systems, which are […]

  • Altazimuth mounting

    a mounting with two axes, to allow movement in both horizontal and vertical planes, used with telescopes, antennas, and precise surveying instruments. noun a telescope mounting that allows motion of the telescope about a vertical axis (in azimuth) and a horizontal axis (in altitude)

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