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[It is remarkable that in the nineteenth century Sir George Airy established an altazimuth at Greenwich— History of Astronomy
Ransome and May, to construct an altazimuth with three-foot circles, and a five-foot telescope, in 1847.— History of Astronomy
Besides a larger altazimuth that he erected in— History of Astronomy
It resembles an astronomical altazimuth, but instead of a telescope it carries an open tube without any lenses.— Scientific American Supplement, No. 611, September 17, 1887
This figure shows the peculiar ocular part of the altazimuth, with the vertical and horizontal circles.— Scientific American Supplement, No. 611, September 17, 1887

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