Olmsted, Denison, 1791-1859. [from old catalog] · New York, R. B. Collins · leaf 229
at- makes them different ? How does each causeoperate ? What is the heliocentric place, and what the geocen-tric place of a planet ? 268. Describe the apparent motions of Mercury and Venusfrom figure 40. 214 THE PLANETS. F are the two points of greatest elongation of the earthfrom the sun as seen… … tion gives an apparent motion to the planet in the orderof the signs—that is, the apparent motion given by theearth is direct. But in passing from F to B through A,when the planet is seen in opposition, the apparent mo-tion given to the planet by the earths motion is fromR to S, and is therefore…
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-199-120.webp)
