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 302
s there seems to bea development of comaat the expense of nucleusand tail. In some casesthe telescope fails to re-veal any nucleus at all inone of these comets; atother times the nucleus isso faint and ill-defined asto be barely distinguisha-ble. Fig. 306 shows atelescopic comet withoutany nucleus… … 276 ASTRONOMY. Fig. 306, or else only an elongation of the coma, as shown
Astronomy
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