Newcomb, Simon, 1835-1909, Holden, Edward Singleton, 1846-1914, joint author · New York, H. Holt and Company · leaf 408
Fig. 101.—TELESCOPIC comet with- Pig. 103.—telescopic comet OUT A NUCLEUS. WITH A NUCLEUS. When comets are studied with a telescope, it is foundthat they are subject to extraordinary changes of structure.To understand these changes, we must begin by saying thatcomets do not, hke the planets,…
Astronomy
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