Young, Charles A. (Charles Augustus), 1834-1908, Young, Anne Sewell, b. 1871., ed · Boston, New York [etc.] Ginn and Company · leaf 234
s nearest the sun,—Mercury, Venus,the Earth, and Mars. They are all bodies of similar magni-tude, ranging from 3000 to 8000 miles in diameter; not verydifferent in density and probably roughly alike in physicalconstitution, though probably also differing very much in theextent, density, and… … Fig. 78. — Relative Sizes of the Planets. make out, present only cloud-covered surfaces to our inspec-tion. There are strong reasons for supposing that they are ata high temperature, and that Jupiter especially is a sort of semi-sun ; but this is not certain. As to the asteroids, the probability is…
Astronomy · Constellations
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