Period of Revolution


Also found in: Dictionary, Wikipedia.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Period of Revolution

 

in astronomy, the interval of time in which a celestial body completes one full revolution in its orbit, one of the elements of an orbit. Depending on the point chosen to mark the beginning of each revolution, various types of periods are distinguished. Two of these types are the nodical period, which marks the beginning of each revolution of the celestial body in its orbit as the ascending node, and the anomalistic period, which has as its starting point for bodies orbiting the sun the perihelion and for those orbiting the earth the perigee. Because orbits are continuously changing owing to perturbations, periods of revolution of the same body, measured from different starting points, may differ somewhat. In the case of an unperturbed orbit, all the periods are equal.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
And Murphy and Owen's departure has made it obvious we'renow observing a period of revolution, not evolution.
The procedure for Method A is as follows: (1) find the interval from the Autumnal Equinox to the Vernal Equinox; (2) the planet's period of revolution; (3) evaluate the interval from the perihelion to the first crossing of the latus rectum; (4) evaluate the interval from the perihelion to the aphelion; (5) set the ratio of (1) to (2) equal to the ratio of (3) to (4); and finally, (6) solve the resulting transcendental equation graphically to yield the eccentricity.
The term "highest" thus does not have the same meaning as "last" or "final." For Lenin, as for Marx, capitalism would only end with social revolution and it was only to the extent that it was the "the eve of the proletarian social revolution" on a "world-wide scale"--as he said at the end of his 1920 preface--that it was possible to speak of the "highest stage" of capitalism--beyond which lay a more or less protracted period of revolution and capitalist decline.
Westerners know relatively little about life in China during the period of revolution and the Communist takeover in the first half of the 20th century.
The year 1959 signalled the end of a volatile period of revolution for Cuba.
The text aims to relate the experiences of `ordinary' people in the period of revolution and state-building.
A geosynchronous satellite is defined as one that has a period of revolution equal to that of the rotation of the earth - 23 hr, 56 min and 4.1 sec, or 86,164.1 sec.
No other known satelliet anywhere in the Solar System is so far from its planet or has so long a period of revolution. Jupiter VIII and Jupiter IX are both about 25 miles in diameter and are known as Pasiphae and Sinope, respectively.
Because the minor planer's period of revolution is a little shorter than that of Earth's, this bean-shaped path slowly shifts from year to year.