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 286
Bond . . . Sept. 16, 1848. 8 Japetus . . 2,313,800 79 7 53 79-33 Cassini . . October, 1671. The apparent brightness or visibility of these satellitesfollows the order of their discovery. The smallest telescopewill show Titan, and one of very moderate size will showJapetus in the western part of its… … Mimas can rarely be seen except at its greatest elongation, andthen only with an aperture of twelve inches or more. Hype-rion can be detected only.with the most powerful telescopes,on account of its faintness and the difficulty of distinguishingit from minute stars. Japetus, the outermost…
Astronomy
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