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 291
twenty-seven degrees. The general aspect from the earth is nearlythe same as from the sun. As the planet revolves aroundthe sun, the axis and plane of the ring keep the samedirection in space, just as the axis of the earth and theplane of the equator do. When the planet is in one part of its orbit,… … Fig. 293. When the planet has moved through a quarter of arevolution, the edge of the ring is turned towards the sunand the earth; and, owing to its extreme thinness, it isvisible only in the most powerful telescopes as a fine line
Astronomy
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