 | International Correspondence Schools - 1899 - 578 стор.
...known. THE EQUINOCTIAL SYSTEM. 68. The primary circle of this system is the celestial equator, which is the great circle in which the plane of the earth's equator intersects the celestial sphere. The celestial equator is also called the equinoctial circle, or simply... | |
 | Robert Wheeler Willson - 1900 - 196 стор.
...where the line of the earth's axis of rotation cuts the sky, and the equinoctial or celestial equator is the great circle in which the plane of the earth's equator cuts the sky. The fact is proved also that the elevation of the pole above the horizon at any place is equal... | |
 | 1900 - 870 стор.
...the earth rotates. The same line prolonged is the axis of the celestial sphere. The celestial equator is the great circle in which the plane of the earth's equator cuts the surface of the celestial sphere. The poles of the celestial equator are the points where the axis pierces... | |
 | Charles Augustus Young - 1902 - 638 стор.
...The Celestial Equator is the great circle of the celestial sphere, drawn half-way between the poles (therefore everywhere 90° from each of them), and...of the earth's equator c-uts the celestial sphere (Fig. 6). It is often called the Equinoctial. Small circles drawn parallel to the equinoctial, like... | |
 | Charles Augustus Young - 1902 - 634 стор.
...,the- , •* ' U-rlestial drawn half-way between the poles (therefore everywhere 90° fromjVequator. each of them), and is the great circle in which the...of the\ earth's equator cuts the celestial sphere (Fig. 6). It is often' called the Equinoctial. Small circles drawn parallel to the Parallels of equinoctial,... | |
 | Charles Augustus Young - 1902 - 636 стор.
...The Celestial Equator is the yreat circle of the celestial sphere, drawn half-way between the poles (therefore everywhere 90° from each of them), and is the great circle in ivhich the plane of the earth's equator cuts the celestial sphere (Fig. 6). It is often called the... | |
 | 1902 - 650 стор.
...EQUINOCTIAL SYSTEM 32. The primary circle of the equinoctial system is the celestial equator, which is the great circle in which the plane of the earth's equator intersects the celestial sphere. The celestial equator is also called the equinoctial circle, or simply... | |
 | Charles Augustus Young - 1903 - 600 стор.
...or Equinoctial. — This is a great circle of the celestial sphere, drawn half-way between the poles (therefore everywhere 90° from each of them), and...enough would mark out such a circle in the heavens. FIG. 6. — The Plane of the Earth's Equator produced to cut the Celestial Sphere. The equator cuts... | |
 | George Albert Wentworth, George Anthony Hill - 1903 - 348 стор.
...the heavenly bodies appear to be situated. The Celestial Equator, or Equinoctial, A VBU (Fig. 105), is the great circle in which the plane of the earth's equator intersects the surface of the celestial sphere. The Poles, P and /" (Fig. 105), of the celestial equator... | |
 | George Albert Wentworth - 1903 - 346 стор.
...the heavenly bodies appear to be situated. The Celestial Equator, or Equinoctial, AVBU (Fig. 105), is the great circle in which the plane of the earth's equator intersects the surface of the celestial sphere. The Poles, P and P' (Fig. 105), of the celestial equator... | |
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... is the great circle in which the plane of the earth's equator cuts the celestial sphere. It is often called the "Equinoctial. 
