 | 1834 - 578 pages
...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... | |
 | Andrew Bell - Mathematics - 1842 - 402 pages
...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... | |
 | John Rorke - 1844 - 188 pages
...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... | |
 | Charles Joseph Riches - 1854 - 64 pages
...and a circle of longitude passing through the centre of the object. Q. What is prime vertical ? A. A vertical circle passing through the east and west points of the horizon, and is perpendicular to the meridian. Q. What is the vertical circle ? A. A circle passing through... | |
 | Franklin C. Brownell - Scientific apparatus and instruments - 1861 - 200 pages
...one passing through the north and south points of the horizon is a meridian. The PRIME VERTICAL is the vertical circle passing through the east and west points of the horizon. The AZIMUTH of a star is the distance measured on the horizon between a vertical circle passing through... | |
 | Hindu astronomy - 1861 - 312 pages
...for the nonagesimal point is called the DRIKSIIEPA-V^ITTA. * The circle of declination or the hour circle passing through the east and west points of the horizon is called UNMANDALA in Sanskrit ; but I am not acquainted with any corresponding term in English. In the... | |
 | Sir Norman Lockyer - Astronomy - 1871 - 464 pages
...that passes through the zenith and nadir of the celestial sphere, 329 ; the prime vertical (329) is the vertical circle passing through the east and west points of the horizon. Via Iiactea, see Milky Way. Volume (volumen, bulk) is the cubical contents of a celestial body ; of... | |
 | John Brocklesby - 1872 - 374 pages
...which are imagined to be formed by planes passing through the zenith, perpendicular to the horizon, ana intersecting the celestial sphere. The vertical circle...meridian. Thus, in Fig. 19, where A represents the earth, SZWMN the celestial sphere, Z the zenith, and the plane SWNE the horizon — PZHM is a vertical circle,... | |
 | James Gordon (teacher of navigation.) - Navigation - 1872 - 76 pages
...Circles passing through Zenith and Nadir, and cutting the Horizon at right angles. 36. Prime Vertical is the Vertical Circle passing through the East and West points of the Horizon. 37. Civil Time is Time reckoned from the preceding midnight or Oh. to noon or ] 21i., and called AM,... | |
 | Leonard Allen - Merchant marine - 1872 - 226 pages
...Great circles passing through the zenith, cutting the horizon at right angles. 36. Prime Vertical. The vertical circle passing through the East and West points of the horizon. 37. Civil Time. Time in common use ; the day commencing at midnight. 38. Astronomical Tune. Tune as... | |
| |
Circles are great circles passing through the zenith of an observer, and perpendicular to his horizon. The vertical circle passing through the east and west points of the horizon is called the Prime Vertical ¡ that passing through the north and south... 
