 The radius vector of each planet describes equal areas in equal times. (3) The squares of the periods of the planets are proportional to the cubes of their mean distances from the su» ; ie, £12 : ia2 : : «!3 : a28. This is the so-called "Harmonic Law.  The Elements of Astronomy: A Textbook - Сторінка 178автори: Charles Augustus Young - 1897 - 464 стор.Повний перегляд - Докладніше про цю книгу
 | George F. Simmons - 2007 - 386 стор.
...planets in our solar system and we have Kepler's third law: The squares of the periods of revolution of the planets are proportional to the cubes of their mean distances. The standard unit of distance among astronomers who work with the solar system is the astronomical... | |
 | William Wallace Payne, Herbert C. Wilson, Curvin Henry Gingrich - 1906 - 696 стор.
...fundamental law on which the Copernican theory rests — Kepler's second law of planetary motion — 'The radius vector of each planet describes equal areas in equal times.' This law which superficially appears to be in opposition to the usual manifestations of centrifugal... | |
 | New Zealand Institute - 1878 - 692 стор.
...19d. 17h." The application of Kepler's third law, namely — that the squares of the periodic times of the planets are proportional to the cubes of their mean distances, gives a remarkable semblance of truth to Le Verrier 's "Elements." On March 20th, 1862, Lummis, in... | |
 | Ball - 536 стор.
...observational methods are founded on Kepler's third law, which states that the squares of the periodic times of the planets are proportional to the cubes of their mean distances. The periodic times of the planets are known with the highest accuracy, because an error of &ny importance... | |
| |
