Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 76
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. 61. Day and Night when the Sun is at the SummerSolstice. — When the sun isat the summer solstice, itwill be 2$\° north of thecelestial equator.…
Astronomy
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