The geography of the heavens, and class-book of astronomy: accompanied by a celestial atlas (1873)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868, ed, Whitall, Henry, 1819-1887? Celestial planisphere · New York, Sheldon & company · leaf 224
r than* the Sun, theshadow would diverge, as we proceed from the placet off intospace ; and the nearer the Sun, the more divergent the shadowwould be. But as the planets are all much mnalkr than theSun, the shadows all converge to a point, and take the form of acone; and the nearer to the Sun, the… … These principles are partly illus-trated in the adjoining cut. Theplanets nearest the Sun have com-paratively short shadows, while thosemore remote extend to a great dis-tance. No primary, however, casts ashadow long enough to reach the nextexterior planet. The magnitude of the Sun is such,that the…
Constellations · Stars
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