The geography of the heavens : and class-book of astronomy : accompanied by a celestial atlas (1860)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868 · New York : Mason Brothers · leaf 191
in thattime that any number of complete revolutions of Venus are justor nearly equal to a certain number of the Earths revolutions. The principle which was illustrated in predicting the transits of Mercury, appliesequally well to those of Venus; that is, we must find such sets of numbers… … THE PRIMARY PLANETS MERCURY AND VENUS. 189 complete revolutions of the Earth and Venus) as shall be to each other In the ratio oftheir periodica! times, or as 365.256 is to 224.7. Thus : the motion of Venus, in the Julianyears, is 21U6591.52; that of the Earth for the same period being 129627.45,…
Constellations · Stars
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