The phenomena and order of the solar system (1843)
Nichol, J. P. (John Pringle), 1804-1859 · New York : Dayton & Newman · leaf 96
ficulty of this task, of the genius, fine discrimina-tion, and infinite labor, required to evolve it; but no read-er can fail to apprehend the value of the truth therebybrought out. There is a curve of an oval shape termed anellipse, whose description is easy. Take a thread, and fixits two ends on… … 2i focus. Now Kepler demonstrated that no system—noconceivable complex scheme of circle on circle wouldcorrespond with the motions of Mars, which could only 76 THEORY PERFECTED. be explained by supposing it to revolve around the Sunin an ellipse—the Sun being not in the centre, but in one ofthe…
Solar system
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