Newcomb, Simon, 1835-1909, Holden, Edward Singleton, 1846-1914, joint author · New York, H. Holt · leaf 40
ace to place on the surface of the earth.If he moves directly toward the north his zenith will ap-proach the north pole, but as the zenith is not a visiblepoint, the motion will be naturally attributed to the pole,which will seem to approach the point overhead. Thenew apparent position of the pole… … Fig. 8.—the parallel sphere. If the observer is at the north pole his zenith and thepole itself will coincide : half of the stars only will be vis-ible, and these will never rise or set, but appear to movearound in circles parallel to the horizon. The horizonand equator will coincide. The meridian…
Astronomy
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