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
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 … This Fig. 294. of light, stretching out on each side of the planet,phase of the ring is shown in Fig. 294. All the satellites, except Japetus, revolve very nearly inthe plane of the ring: consequently, when the edge of thering is turned towards the earth, the satellites seem to swing ASTRONOMY. 265…
Astronomy
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