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Call the zenith distance north or south, according as the zenith is north or south of the object. If...
Outline of the Method of Conducting a Trigonometrical Survey, for the ... - Page 141
by Edward Charles Frome - 1850 - 253 pages

## Elements of Plane and Spherical Trigonometry: With Its Applications to the ...

John Radford Young - 1833 - 314 pages
...pole, then we must wiiie south for north, and north for south. Hence the following rale for all cases. Call the zenith distance north or south, according as the zenith is north or south of the object. If the zenith distance and declination be of the same name, ihati-, both north or both south, their sum...

## Elements of Trigonometry, Plane and Spherical: Adapted to the Present State ...

Charles William Hackley - 1838 - 328 pages
...pole, then we must write south for north, and north for south. Hence the following rule for all cases. Call the zenith distance north or south, according as the zenith is north or south of the object. If the zenith distance and declination be of the same name, that is, both north or both south, their sum...

## An Elementary Treatise on Astronomy: In Four Parts. Containing a Systematic ...

William Augustus Norton - 1839 - 373 pages
...a place, is the arc of the meridian intercepted between the zenith and the celestial equator. It is North, or South, according as the zenith is north, or south of the equator. ZE (Fig. 5) represents the latitude of the station o. 27. The earth's surface, considered...

## Outline of the Method of Conducting a Trigonometrical Survey, for the ...

Edward Charles Frome - 1840 - 232 pages
...star being to the south of the zenith Z ; or ES'— ZS'— when to the north above the pole P ; and 180— (QS" + ZS") when to the north below the pole....the latitude being of the same name as the greater. EXAMPLES. ' iOn April 25th, 1838, in longitude 2m- 30s- east, the meridional double altitude of Q was...

## An Elementary Treatise on Astronomy: In Two Parts. The First Containing, a ...

John Gummere - 1842 - 514 pages
...the arc of the meridian intercepted between the zenith of the place and the equator. It is said to be north or south according as the zenith is north or south of the equator. Thus ZQ, Fig. 1, is the latitude of the place A, to the north. It follows from the definition...

## A Treatise on Trigonometry, Plane and Spherical: With Its Application to ...

Charles William Hackley - 1851 - 538 pages
...product added or subtracted will produce the declination at the time of meridian transit at the ship. Call the zenith distance north or south, according as the zenith is north or south of the object. If the zenith distance and declination be of the same name, that is, both north or both south, their sum...

## A Treatise on Trigonometry, Plane and Spherical: With Its Application to ...

Charles William Hackley - 1851 - 524 pages
...product added or subtracted will produce the declination at the time of meridian transit at the ahip.> Call the zenith distance north or south, according as the zenith is north or south of the object. If the zenith distance and declination be of the same name, that is, both north or both south, their sum...

## Navigation and Nautical Astronomy: The Practical Part, Containing Rules for ...

H. W. Jeans - 1853 - 314 pages
...get the true altitude. Subtract the true altitude from 90° to get the true zenith distance. 4. Mark the zenith distance north or south according as the zenith is north or south of the planet. 5. Proceed then as in Eule XXVIII., Art. 5. November 20, 1853, at 6h 18m AM, mean tune nearly,...