The young astronomer; or, The facts developed by modern astronomy, collected for the use of schools and the general reader (1847)
Abbott, John S. C. (John Stevens Cabot), 1805-1877 · New York, J.C. Riker [etc.] · leaf 35
e dis-tance of the Earth from the Sun ? With what velocity does it re-volve ? In what time does it perform its annual revolution ? Whatspace do we pass through each hour ? How nearly a perfect globe isthe Earth ? 30 THE YOUNG ASTRONOMER. Iy round. There are various and conclusive proofs,that the… … 3. The shadow which the Earth casts upon the Moonin an eclipse, is precisely that which one globe wouldproject upon another globe. Some may suppose that the Earth cannot be consid-ered as globular, in consequence of the lofty ridges ofmountains upon its surface. But the inequality causedby the…
Astronomy
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