Newcomb, Simon, 1835-1909, Holden, Edward Singleton, 1846-1914, joint author · New York : H. Holt and company · leaf 487
ses,however, clusters are composed of a mixture of nebulosity (usuallynear their centre) and of stars, and the spectnim in such cases iscompound in its nature, so as to indicate radiation both by gaseousand solid matter. § 5. DISTRIBUTION OP NEBUL-ffi! AND CLUSTERS ON THE SURFACE OE THE CELES- TIAL… … STAR. OL USTER8. 467 The position of each nebula is marked by a dot; where the dots arethickest there is a region rich in nebulse. A casual examinationshows that such rich regions are distant from the Galaxy, and itwould appear that it is a general law that the nebulse are distri-buted in greatest…
Astronomy
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
