 | John Bonnycastle - 1806 - 464 pągines
...and cutting the horizon at right angles. The prime vertical, or six o'clock hour line, is the azimuth circle which passes through the east and west points of the horizon ; being that on which the sun rises and sets when the days and nights are equal. The latitude of any... | |
 | Thomas Keith - 1810 - 478 pągines
...altitudes of the heavenly bodies are measured on these circles. (N) The prime "vertical is that azimuth circle which passes through the east and west points of the horizon. (O) Meridians are great circles passing through the poles of the world, and cutting the equinoctial... | |
 | Thomas Keith - 1811 - 388 pągines
...making the other end move along the wooden horizon of the globe. 44. The PRIME VERTICAI is that azimuth circle which passes through the east and west points of the horizon, and is always at right angles with the brass meridian, which may be considered as another vertical... | |
 | John Lathrop - 1812 - 218 pągines
...making the other end move along the wooden horizon of the globe. 177. The prime vertical is that azimuth circle •which passes through the east and west points of the horizon, and is always at right angles with the brass meridian, which may be considered as another vertical... | |
 | Thomas Keith - 1821 - 408 pągines
...making the other end move along the wooden horizon of the globe. 44. The PRIME VERTICAL is that azimuth circle which passes through the east and west points of the horizon, and is always at right angles to the brass meridian, which may be considered as another vertical circle... | |
 | Emma Willard - 1822 - 102 pągines
...the zenith towards the nadir, cutting the horizon at right angles. The Prime Vertical is that Azimuth Circle which passes through the east and west points of the horizon, and is always at right angles with the meridian. Solstitial Points are the first points of Cancer and... | |
 | Robert Woodhouse - 1823 - 466 pągines
...greatest, that is, when PZSssQCf, or the azimuth, is 90°, or the body is on the Prime Vertical: which is that vertical circle which passes through the east and west points. The above is the reason of the precept given by Dr. Maskelyne at p. 152, Nautical Almanack, in which... | |
 | Emma Willard - 1827 - 104 pągines
...zenith towards the nadir, cutting the horiznii at right angles. The Prime Vertical is that Azimuth Circle which passes through the east and west points of the horizon, and is always at right angles with the meridian. Solstitial Points are the first points of Cancer and... | |
 | James Ryan - 1827 - 408 pągines
...zenith of any place, and making the other end move along the horizon of the globe. 7. That azimuth circle which passes through the east and west points of the horizon, is called the prime vertical. This circle is always at right angles with the brass meridian, which... | |
 | William Channing Woodbridge - 1829 - 494 pągines
...the zenith towards the nadir, cutting the horizon at right angles. The Prime Vertical is that Azimuth Circle which passes through the east and west points of the horizon, and is always at right angles with the meridian. bu'stitial Points are the first points of Cancer and... | |
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The prime vertical is that vertical circle which passes through the east and west points. 
