The heavens above: a popular handbook of astronomy (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908 · New York, Chicago, Potter, Ainsworth, & Co. · leaf 77
orivhen at the equinoxes, and 231-° north of the equator when atthe summer solstice, and 2^-^° south of the equator when at the winter solstice. 60. Day and Nightwhen the Sun is at theEquinoxes. — When thesun is at either equinox,the diurnal circle de-scribed by the sun willcoincide with the… … The equality of days and nights when the sun is on thecelestial equator is alsoevident from the followingconsiderations: one-half ofthe earth is in sunshine allof the time; when the sunis on the celestial equator,it is directly over the equa-tor of the eartli, and theillumination extends frompole…
Astronomy
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