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" A Solar Day is the interval of time between two successive transits of the sun over the same meridian; and the hour-angle of the sun is called Solar Time. "
Outline of the Method of Conducting a Trigonometrical Survey, for the ... - Page 169
by Edward Charles Frome - 1850 - 253 pages
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Electrical Measurements: A Laboratory Manual

Henry Smith Carhart, George Washington Patterson - 1895 - 360 pages
...unit of time universally employed in scientific investigations is the second of mean solar time. An apparent solar day is the interval between two successive transits of the sun's centre across the meridian of any place. But since the apparent solar day varies in length from...
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Smithsonian Miscellaneous Collections, Volume 35

Smithsonian Institution - 1897 - 982 pages
...The sidereal time at any place is о when the vernal equinox is in the meridian of that place. The solar day is the interval between two successive transits of the sun across any meridian ; and the solar time at any instant is the hour angle of the sun at that instant....
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A Treatise on Surveying, Comprising the Theory and the Practice, Volume 2

William Mitchell Gillespie - 1897 - 482 pages
...The sidereal time at any place is 0* when the vernal equinox is in the meridian of that place. The solar day is the interval between two successive transits of the sun across any meridian, and the solar time at any instant is the hour angle of the sun at that instant....
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Elements of Astronomy Designed for Academics and High Schools

Elias Loomis - 1897 - 264 pages
...time, corresponds to July 3d, 21 hours of astronomical time. 117. Apparent Time and Mean Time. — An apparent solar day is the interval between two successive transits of the sun's centre over the same meridian. Apparent time is tivno ASTRONOMY. reckoned in apparent solar days,...
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Congressional Serial Set

1898 - 580 pages
...ordinary life, and is measured by the daily motion of the sun. A Solar Day is the interval of time between two successive transits of the sun over the same meridian; and the hour-angle of the sun is called Solar Time. This is the most natural and direct measure of time....
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A Treatise on Navigation and Nautical Astronomy

William Robert Martin - 1899 - 474 pages
...application of their known right ascensions. Such stars are technically known as ' Clock Stars.' An apparent solar day is the interval between two successive transits of the sun's centre over the same meridian ; it begins when that point is on the meridian (apparent noon)....
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Topographical Surveying: Including Geographic, Exploratory, and Military ...

Herbert Michael Wilson - 1900 - 986 pages
...vernal equinox transits across the meridian. It includes 24 hours, numbered consecutively from zero. An apparent solar day is the interval between two successive transits of the sun across the meridian. The apparent solar time for any station of observer and any instant is the hour-angle...
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Topographical Surveying: Including Geographic, Exploratory, and Military ...

Herbert Michael Wilson - 1900 - 988 pages
...vernal equinox transits across the meridian. It includes 24 hours, numbered consecutively from zero. An apparent solar day is the interval between two successive transits of the sun across the meridian. The apparent solar time for any station of observer and any instant is the hour-angle...
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Topographical Surveying: Including Geographic, Exploratory, and Military ...

Herbert Michael Wilson - 1900 - 964 pages
...vernal equinox transits across the meridian. It includes 24 hours, numbered consecutively from zero. An apparent solar day is the interval between two successive transits of the sun across the meridian. The apparent solar time for any station of observer and any instant is the 'hour-angle...
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Navigation and Nautical Astronomy

Frank Cole Stebbing - 1903 - 364 pages
...interval between the sun's leaving a fixed point in the h.eavens and returning to it again. Def. 97. A Solar Day is the interval between two successive transits of the, sun over the same celestial meridian. Def. 98. A Solar Year is the interval between the sun's leaving the Jirst point...
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