 | Anders Hald - 2005 - 608 pages
...also called the area law. 3. The squares of the times of revolution of any two planets around the sun are in the same proportion as the cubes of their mean distances from the sun; that is T2/R* is the same for all the planets, where T is the planet's siderial period, and R is the... | |
 | George C. Noonan - 2005 - 206 pages
...was published in the treatise De harmonica mundi in 1619: 3. The squares of the periods of any two planets are in the same proportion as the cubes of their mean distances from the Sun. Kepler's first love was astronomy, although he continued to publish treatises on astrology (eg, Tennis... | |
 | 1962 - 44 pages
...equal intervals of time. His third law, or discovery, is that the squares of the periods of any two planets are in the same proportion as the cubes of their mean distances from the sun. Kepler's laws are used today to calculate the trajectories of space probes. Galileo Galilei was the... | |
 | William Chambers, Robert Chambers - 1847 - 534 pages
...1618, made his splendid discovery, that the squares of the periodic times of the planets are always in the same proportion as the cubes of their mean distances from the sun. The sagacity of this wonderful man, and his incessant application to the study of the planetary motions,... | |
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The squares of the times of revolution of any two planets are to each other, in the same proportion as the cubes of their mean distances from the sun. 
