The geography of the heavens, and class-book of astronomy: accompanied by a celestial atlas (1873)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868, ed, Whitall, Henry, 1819-1887? Celestial planisphere · New York, Sheldon & company · leaf 195
n 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 PR MARY PLANETS MERCURY AND VENCS -i-0^ complete revolutions of the Earth and Venus) as shall be to each other in the *atio cftheir periodical times, or as 365.256 is to 224.7. Thus: the motion of Venus, in the Julianfears, is 21(;6591.52; that of the Earth for the same period being 129627\45,…
Constellations · Stars
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