Elementary astronomy; a beginner's text-book (1899)
Holden, Edward Singleton, 1846-1914 · New York, H. Holt and company · leaf 86
, and that some stars will never set below it.If we draw the celestial sphere as it is for any particularobserver we shall be able to say just how the stars will ap-pear to move for him; just what stars he can see, and justwhat others he can never see. The student should exercise himself in making… … Fig. 38. The circles of the celestial sphere and the diurnal motions of the starsas they appear to an observer at the north pole of the earth. The Diurnal Motion of Stars as Seen by an Observer atthe North Pole of the Earth.—An observer at the northpole of the Earth is in terrestrial latitude 90°;…
Astronomy
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