Elementary astronomy; a beginner's text-book (1899)
Holden, Edward Singleton, 1846-1914 · New York, H. Holt and company · leaf 71
the star will therefore neitherrise nor set, but will simply perform an apparent diurnal 50 ASTRONOMY. revolution round the pole. Such stars are shown inFig. 25. The apparent diurnal motion of the stars is inthe direction shown by the arrows in the cut. Below thenorth pole the stars appear to move… … Fig. 28.—The Stars of the Dippek; as they appear at different times during their daily revolution round the pole. stars perpetually appear—are visible. The radius of thiscircle is equal to the altitude of the pole above the horizonor to the north-polar-distance of the north point of thehorizon.…
Astronomy
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