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" To lunar observations, however, is joined the use of timekeepers, which serve in the intervals during which observations of the distance of the moon from the sun, or from a star, cannot be obtained. These instruments would alone accomplish the end proposed,... "
Universal geography, or A description of all the parts of the world - Page 32
by Malthe Conrad Bruun - 1822
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Pantologia. A new (cabinet) cyclopædia, by J.M. Good, O. Gregory ..., Volume 7

John Mason Good - 1819 - 742 pages
...others, have reckoned the fx5¡ astronomical method for finding the longitude n sea, to be that in which the distance of the moon from the sun or from a star is used ; for the moon's daily motion being about 13 degrees, her hourly mean motion is above half...
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Universal Geography: Or A Description of All Parts of the World ..., Volume 1

Conrad Malte-Brun - 1827 - 564 pages
...I Uleof chro. which serve in the intervals during which observations of the distance | "o">eier». of the moon from the sun, or from a star, cannot be...remain exactly the same during the whole continuance of * Zach, Correspond, i. 73. note. \ Rcssft, Voyage d'Entrecasteaux, ii. 244. T They who wish to become...
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Universal Geography: Or, A Description of All Parts of the World, on a New ...

Conrad Malte-Brun - 1829 - 552 pages
...икоГеЬгоwhich serve in the intervals during which observations of the distance | »»гавев. of the. moon from the sun, or from a star, cannot...their motion would remain exactly the same during tho wholo continuance of • Zach, Correspond, i. 73. note. f Jiotsel, Voyage d'Entrecasteaux, ¡i....
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The Parochial History of Cornwall: Founded on the Manuscript ..., Volume 2

Davies Gilbert - 1838 - 448 pages
...two objects, independent of all agitations of the instrument itself, enabled observers to ascertain the distance of the moon from the sun, or from a star, almost as accurately on board a ship as on the solid land. With these assistances the determination...
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System of universal geography, founded on the works of Malte-Brun and Balbi

System - 1842 - 894 pages
...sea. To lunar observations, however, it is necessary to join the use of chronometers, or lime-keepers, which serve in the intervals during which observations...them with such accuracy, that when once regulated to mean time under a given meridian, their motion would remain exactly the same during the whole continuance...
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System of Universal Geography: Founded on the Works of Malte-Brun and Balbi ...

James Laurie - 1842 - 1098 pages
...sea. To lunar observations, however, it is necessary to join the use of chronometers, or time-keepers, which serve in the intervals during which observations of the distance of the uioon from the sun, or from a star, cannot be obtained. These instruments would alone accomplish the...
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The improved coaster's guide, and Marine board examination, for the east ...

Alexander Baharie - 1844 - 218 pages
...superseded all the other methods. To lunar observations, however, is joined the use of timekeepers, which serve in the intervals during which observations...the same during the whole continuance of the voyage ; for they would then at all times point out the hour under the said meridian. Even to the present...
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