...The last time the system ofrings was exactly edgewise to the earth was on the 3rd of October 1907... 
Cecil G. Dolmage 「Astronomy of To-day」
...The ring is so thin that it disappearsaltogether when turned edgewise...
George C. Comstock 「A Text-Book of Astronomy」
...This is owingpartly to their more deliberate movements and partly tothe inclination of the plane of their orbits, which seldomlies edgewise toward the earth...
Garrett Serviss 「Pleasures of the telescope」
...Thering happened then to be at its edgewise period, and a careful study ofthe behaviour of the ansæ when disappearing and reappearing soonrevealed to Huyghens the true explanation...
Cecil G. Dolmage 「Astronomy of To-day」
...Finally, when we observe stars actually moving in the ecliptic, thecircles they follow would be seen edgewise, and thus the stars wouldhave merely the linear movement which they are seen to possess...
Robert Stawell Ball 「The Story of the Heavens」
...Transits, eclipses, and occulations of Saturn's satellites can only beseen when the ring is turned nearly edgewise towards the earth...
Richard A. Proctor 「Half-hours with the Telescope」
...The rings when turned edgewise either towards the earth or sun, are notvisible in ordinary telescopes, neither can they be seen when the earthand sun are on opposite sides of the rings...
Richard A. Proctor 「Half-hours with the Telescope」
...Twice in the course of a revolution, which occupies nearly thirtyyears, the rings are seen edgewise, and for a few days are invisibleeven in a powerful telescope...
Simon Newcomb 「Side-lights on Astronomy and Kindred Fields of Popular Science」
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