 | John Bonnycastle - 1806 - 464 páginas
...place, 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 páginas
...horizon at right ' angles. The 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 páginas
...place, and 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...through the north and south points of the horizon. 45. The ALTITUDE of any object in the heavens, is an arch of a vertical circle., contained between... | |
 | Thomas Keith - 1819 - 380 páginas
...wooden horizon of the globe. 44. The PRIME VERTICAL is that azimuth circle which passes through lie east and west points of the horizon, and is always...through the north and south points of the horizon. 45. The ALTITUDE of any object in the heavens, is anarch of a vertical circle, contained between the... | |
 | Thomas Keith - 1821 - 408 páginas
...on the zenith of any place, and making the other end move along the wooden horizon of the globe. 44. The PRIME VERTICAL is that azimuth circle which passes...points of the horizon, and is always at right angles to the brass meridian, which may be considered as another vertical circle passing through the north... | |
 | Edward Bruce (bookseller.) - 1821 - 418 páginas
...horizon, it will represent the quadrant of a vertical circle. 24°. The prime vertical is that vertical circle which passes through the east and west points of the horizon. If the quadrant of altitude be fixed upon the zenith, and brought to the east or west points of the... | |
 | Emma Willard - 1822 - 102 páginas
...circles, supposed to be drawn from the zenith towards the nadir, cutting the horizon at right angles. The Prime Vertical is that Azimuth Circle which passes...the horizon, and is always at right angles with the meridian. Solstitial Points are the first points of Cancer and Capricorn, so called because the sun,... | |
 | Thomas Keith - 1826 - 504 páginas
...the horizon at right angles. The 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 in the horizon. (O) Meridians are great circles passing through the poles of the world, and cutting... | |
 | Emma Willard - 1827 - 104 páginas
...circles, supposed to he drawn from the zenith towards the nadir, cutting the horiznii at right angles. The Prime Vertical is that Azimuth Circle which passes...the horizon, and is always at right angles with the meridian. Solstitial Points are the first points of Cancer and Capricorn, so called because the sun,... | |
 | William Channing Woodbridge - 1827 - 494 páginas
...nadir, cutting the horizon at right angles. The Prime Vertical is that Azimuth Circle which passés 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 Capricorn, so called because the sun,... | |
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The PRIME VERTICAL is that azimuth circle which passes through the east and west points of the horizon, and is always at right angles... 
