Sharpless, Isaac, 1848-1920, Philips, G. M. (George Morris), 1851-1920, joint author · Philadelphia, J.B. Lippincott company · leaf 35
Latin sol, the sun. 3* 29 30 ASTRONOMY. members revolve. The time that it takes one of thesebodies to revolve about the sun is called its year. Ifan observer could be at the sun and watch the othermembers of the solar system, they would revolve abouthim in apparent circles, just as we see the moon… … Fig. 3.—The Orbits of Maes, the Earth, and Venus. One inch = 100,000,000 miles.The arrows show the direction in which the planets move, as seen from the north sideof their orhits. The path in which a body moves about the sun iscalled its orbit. Fig. 3 shows the orbits of the earthand the planets…
Astronomy
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