Electro astronomical atlas ... with explanatory notes, questions and answers (1874)
Spoor, J. W. (Joseph W.) · Albany, N.Y., Weed, Parsons and Company · leaf 89
EXTREME LEAST AND MEAN DISTANCES. Q. What is the density of Mars compared withthe Earth I A. It is much less. Q. How much would a body weigh on theplanet Mars that weighs one pound on the Earth? A. It would weigh 5 ounces and 6 drachms. Q. What is the ratio of the distance from theSun, of the… … PLATE _§SL 4,0 »o\0 _ ^ ~l\0 &\o■ £??*. Exhibiting the relative ^Position of thean3their Inclination to the-Plane I :«
Astronomy
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