Measuring the heavens and the earth. Instruments measuring horizontal and vertical angles have been commonly used in land surveying. For astronomy, it is convenient to be able to track the motion of a star or planet using only a single circular motion. It achieves this my mounting the telescope assembly on a circle which can be set parallel to the celestial equator.
Measuring the heavens and the earth. Instruments measuring horizontal and vertical angles have been commonly used in land surveying. For astronomy, it is convenient to be able to track the motion of a star or planet using only a single circular motion. It achieves this my mounting the telescope assembly on a circle which can be set parallel to the celestial equator.
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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: angle, angles, archival, archive, astronomy, earth, heavens, historical, history, horizontal, instrument, land, measuring, surveying, vertical
