...The secondaries of the horizon are called azimuth circles, or vertical circles; and that which passes through the east and west points of the horizon is called the prime vertical, while that which passes through the north and south points of it is called the meridian. All these...

...through its zenith, and is, of course, one of the vertical circles. » The vertical circle that passes through the east and west points of the horizon, is called the Prime Vertical; it is perpendicular to the meridian. The arc of a vertical circle, intercepted between a heavenly body...

...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 may be considered as another vertical...

...head of the observer is called his zenith, and the opposite one his nadir. That vertical which passes through the east and west points of the horizon is called the prime vertical; it necessarily intersects the meridian of the place (which passes through the north and south points)...

...VERNIER.— See Gtoaary I. VKRSED SINE — See Glouary I. VERTICAL CIRCLES.— See Glottary II. Horizon. A vertical circle, passing through the east and west points of the horizon, U called the Prime Vertical. VIVIPAROUS, a general designation for such animals as bring forth their...

...the observer, and called his zenith, and the opposite one his nadir. That vertical one which passes through the east and west points of the horizon is called the prime vertical ; it necessarily intersects the meridian of the place (which passes through the north and south points)...

...longitude. 388. Vertical circles are great circles passing through both the poles of the horizon. 389. A vertical circle, passing through the east and west...points of the horizon, is called the prime vertical. 390. Small circles, parallel to the equinoctial, are called parallels of declination. 391. Small circles,...

...and nadir, and cutting the horizon at right angles. 3. What is meant by the prime vertical ? Ans. A vertical circle passing through the east and west points of the horizon. 4. In the performance of this problem, what represents the vertical circle passing through the sun...

...centre of the object and the meridian of the place. PRIME VERTICAL. That vertical circle which passes through the East and West points of the horizon, is called the Prime Vertical. SOLISTIAL COLURES. The Solistial or Solistitial Colures passeth through the points of Cancer and Capricorn,...

...transit by the siderial clock. The formula for the correction in declination is tical circle which passes through the east and west points of the horizon is called the prime vertical ; it necessarily intersects the meridian of the place (which passes through the north and south points)...