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The elements of astronomy; a textbook (1919)

Young, Charles A. (Charles Augustus), 1834-1908, Young, Anne Sewell, b. 1871., ed · Boston, New York [etc.] Ginn and Company · leaf 363

An illustration from The elements of astronomy; a textbook, 1919, leaf 363
yMr. Eoberts of Liverpoolin December, 1888, andshows that the so-called dark lanes, which hith-erto had been seen onlyas straight and whollyinexplicable markings, asrepresented in Fig. 116, are really curved ovals, like the divisions in Saturns rings.The photograph brings out clearly a distinct… … Fig. 117.—A Spiral Nebula (Keeler). 346 PHOTOGRAPHS OF NEBULJ3. [§471 Thus, in the Pleiades, it has been found that nearly all the largeistars have wisps of nebulous matter attached to them, as indicated bythe dotted outlines in Fig. 115: and in a small territory in and near

Astronomy · Constellations

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