The heavens above: a popular handbook of astronomy (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908 · New York, Chicago, 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… … rig. 3M- are seen through it without any apparent obscuration. SeeFig. 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 DonatPs comet as it appeared at one time.The tail of…
Astronomy
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