The heavens above: a popular handbook of astronomy (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908 · New York, Chicago, Potter, Ainsworth, & Co. · leaf 78
Fig- 71. ASTRONOMY. 59 … extends from pole to pole: hence, as the earth rotates on itsaxis, every place on the surface will be in the sunshine andout of it just half of the time. 6i. Day and Night nihen the Sun is at the SummerSolstice. — When the sun isat the summer solstice, itwill be 23!° north of thecelestial equator.…
Astronomy
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