| 单词 | altazimuth |
| 例句 | Telescope, consisting of a brass tube 3-1/2 in. long with an aperture of 2-3/4 in.; on its original brass tripod, with a serviceable altazimuth mounting. Early American Scientific Instruments and Their Makers 2012-03-15T02:00:31.610Z The altazimuth can thus determine the altitude and azimuth of objects, hence the name. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide This may be furnished either with an equatorial bearing for the telescope, or an altazimuth arrangement which permits both up-and-down and horizontal motions. Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers He himself, however, by much more exact observations, with an excellent altazimuth, reduced the alleged error from 20 minutes to only 4-1⁄2, or to 9⁄40ths of its formerly supposed value. Myths and Marvels of Astronomy The instruments used were altazimuths, constructed under the direction of Prof. Mohn, specially for measuring the parallax of the aurora borealis. Scientific American Supplement, No. 613, October 1, 1887 In 1847 an altazimuth was erected, designed by Airy to enable observations of the moon to be made not only on the meridian, but whenever she might be visible. The Project Gutenberg Encyclopedia Volume 1 of 28 Besides a larger altazimuth that he erected in 1898, he has widened the field of operations at Greenwich by the extensive use of photography and the establishment of large equatoreals. History of Astronomy The instruments provided for the journey consisted of two barometers, two thermometers, two compasses, a sextant, two chronometers, an artificial horizon, and an altazimuth, to throw out the height of distant and inaccessible objects. Five Weeks in a Balloon |
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