TRANSIT INSTRUMENT • E-FREE TRANSLATION.COM • Definition of Transit instrument

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/trˈænzɪt ˈɪnstrəmənt/ Listen

Transit instrument

noun

A telescope mounted on an axis running east and west and used to time the transit of a celestial body across the meridian.

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Etymology of 'Transit instrument'

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"Transit instrument" Quotes from Famous Books

... necessary for completing the delineation of the meridian of the source of the river St. Croix, it will be borne in mind that numerous astronomical observations must be made in aid of the operations with the transit instrument, in order constantly to preserve the true north direction, a condition of the utmost consequence, not alone as affecting the extent of territory that will be embraced by it, but more particularly because the character and position of the highlands alluded to in the treaty of 1783 would be ...

— A Compilation of the Messages and Papers of the Presidents: Tyler - Section 2 (of 3) of Volume 4: John Tyler • Compiled by James D. Richardson

... Propagation of Light as revealed by a certain inequality in the motion of Jupiter's First Satellite." In 1681 he returned to Copenhagen as Professor of Mathematics and Astronomy, and died in 1710. He invented the transit instrument, mural circle, equatorial mounting for telescopes, and most of the other principal instruments now in use in observatories. He made as many observations as Tycho Brahe, but the records of all but the work of three days were destroyed by ...

— Pioneers of Science • Oliver Lodge

Words linked to "Transit instrument" : telescope, scope