Electro astronomical atlas ... with explanatory notes, questions and answers (1874)
Spoor, J. W. (Joseph W.) · Albany, N.Y., Weed, Parsons and Company · leaf 87
f its geography 1 A. It is nearly as well known and as well de-fined as that of the Earth. See Fig. 36. Q. Is there evidence that Mars is inhabited ? A. The conditions of life on these planets areso unequal, it seems hardly possible or even pro-bable, for Mars to be inhabited. Q. What seems to… … this manifest ? CHART OF MARS, FROM DRAWINGS BY MR. DAWES Q. What is the circumference of its orbit ?A. It is 901,064,000 miles. 52 ELECTRO-ASTRONOMICAL ATLAS. Q. What is the mean distance of Mars from theEarth ?A. He is 50,000,000 miles.Q. Is he then in conjunction or opposition ?A. In opposition…
Astronomy
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