The heavens above: a popular handbook of astronomy (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908 · New York, Chicago, Potter, Ainsworth, & Co. · leaf 86
, and 82 are enlarged views of the earth, as seen from the sun at the timeof the summer solstice, ofthe autumnal equinox, ofthe winter solstice, andof the vernal equinox. Fig. 83 is, so to speak,a side view of the earth,showing the limit of sun-shine on the earth whenthe sun is at the… … 68 ASTRONOMY. upon the obliquity of the ecliptic. Were there no obliquity of the ecliptic, therewould be no inequalityin the length of dayand night, and butslight diversity of sea-sons. The greater theobliquity of the eclip-tic, the greater wouldbe the variation in thelength of the days andnights,…
Astronomy
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