The geography of the heavens, and class-book of astronomy: (1858)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868 · New York, Mason brothers · leaf 293
At this time, the north pole of the Earths axis is turned from theSun, into perpetual darkness; while the south pole, in its turn, is brought into the lightof the Sun, whereby the whole Antarctic region comes into the circle of perpetual illumi-nation. It is now that the southern hemisphere enjoys… … * This diagram and the accompanying explanations should be carefully studied tillthey are thoroughly understood by the learner. The cause of the seasons and of theunequal lengths of the days and nights, is a matter of which no professedly educatedperson ought to be ignorant, or to entertain…
Constellations · Stars
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