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 307
28o ASTRONOMY. The tail of a comet, when seen at all, is usually severalmillion miles in length; and in some instances the tail islong enough to reach across the orbit of the earth, or twiceas far as from the earth to the sun. The tails of comets are apparently hollow, and are some-times a million… … Fig. 314. See are seen through it without any apparent obscuration.Fig. 316, which is a view of the great comet of 1264. The tails of comets are sometimes straight, as in Fig.316, but usually more or less curved, as in Fig. 317, whichis a view of Donates comet as it appeared at one time.The tail of…
Astronomy
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