Sharpless, Isaac, 1848-1920, Philips, G. M. (George Morris), 1851-1920, joint author · Philadelphia, J.B. Lippincott company · leaf 274
lliptic nebulae. 1 2 P G 7 8 1 9 Fig. 69.—Circular and Elliptic Nebula. Spiral nebulae can be seen as such only in the largesttelescopes. Fig. 70 represents one as it appeared inLord Kosses great reflector. Planetary nebulae are so called because they resemblea planet in appearance. In the… … Fio. 70.—Spieal Nebula, appear of appreciable size. A planetary nebula isuniformly bright, and often has a well-defined outline, 23* 270 ASTRONOMY. so that it might be mistaken for one of the outer planetsof the solar system. Nebulous stars are so named because they seem tobe surrounded by an…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
