Elements of theoretical and descriptive astronomy, for the use of colleges and academies (1901)
White, Charles J · New York: J. Wiley & sons · leaf 197
y take long years to prove or dis-prove this hypothesis; but it is certain that the tendency ofrecent observations is to show its correctness. Fresh doubts are thrown upon the truth of the nebular hy-pothesis by the discovery of the satellites of Mars (§ 203); sincethe angular velocity of the inner… … 1 BIELAS COMET. 2 ENCKES cqmET. COMETS. 3. GREAT COMET OF 1861. 4. DONAHS COMET, 1858. COMETS. 187 X CHAPTER XIII. COMETS AND METEOEIC BODIES.COMETS. 233. General Description of Comets.—A comet is a body ofnebulous appearance and irregular shape, revolving in an orbitabout the sun. Comets have…
Astronomy
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