Newcomb, Simon, 1835-1909, Holden, Edward Singleton, 1846-1914, joint author · New York, H. Holt · leaf 134
If, whena planet is in conjunction, it is between the earth and thesun, the conjunction is said to be an inferior one ; if be-yond the sun, it is said to be superior. Arrangements and Motions of the Planets.—We nowknow that the sun is the real centre of the solar system,and that the planets proper… … Fig. 48.—orbits of the planets. in the same plane. The planets Mercury and Venuswhich, as seen from the earth, never appear to recede veryfar from the sun, are in reality those which revolve inside 116 A8TB0N0MT. the orbit of the earth. The planets of the third class,which perform their circuits at…
Astronomy
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![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-35-14.webp)
