Young, Charles A. (Charles Augustus), 1834-1908, Young, Anne Sewell, b. 1871., ed · Boston, New York [etc.] Ginn and Company · leaf 252
be no question that the main features of the planetssurface are substantially correct. The nomenclature, however, is in avery unsettled condition. Schiaparelli has taken his names mostlyfrom ancient geography, while the English areographers,1 followingthe analogy of the lunar maps, have mainly used… … § 336] SATELLITES. 237 335. Temperature.—As to the temperature of Mars wehave no certain knowledge at present. Unless the planethas some unexplained sources of heat it ought to be very cold.Its distance from the sun reduces the intensity of solar radi-ation upon its surface to less than half its…
Astronomy · Constellations
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