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 75
orwhen at the equinoxes, and 2$\° north of the equator when atthe summer solstice, and 23^° 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 earth, and theillumination extends frompole…
Astronomy
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