Lagrangian point

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La·gran·gi·an point

 (lə-grān′jē-ən)
n.
Astronomy Any of five points in the orbital plane of two bodies, one of which is much larger than the other, at which a third, even smaller body will remain in gravitational equilibrium. Bodies located at Lagrangian points appear stationary with respect to the larger two bodies. Also called Lagrange point.

[After Comte Joseph Louis Lagrange.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Lagrangian point

n
(Astronomy) astronomy one of five points in the plane of revolution of two bodies in orbit around their common centre of gravity, at which a third body of negligible mass can remain in equilibrium with respect to the other two bodies
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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Experts described the Lagrange points as unique positions in the solar system where objects can maintain their position relative to the sun and the planets that orbit it.
Lagrange points are unique positions in the solar system where objects can maintain their position relative to the sun and the planets that orbit it.
KuwaitUo's ambassador to Belgium, the European Union and NATO, Jasem Al Budaiwi, attended the opening ceremony of the project called "Lagrange Points," on Tuesday.
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We may use Lagrange points to find the general stable and unstable equilibrium points of Cournot model in the incomplete market.
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Mini moons typically enter the Earth system near one of the Earth-Sun Lagrange points. Their entry could be monitored by a spacecraft located on the sunward side of the Lagrange L1 point, so that the mini moons would be visible to the spacecraft's telescope at maximum solar illumination.
"[A]t some point in the future, we're going to want to go outside of Earth orbit again, wherever that may be -- whether its Lagrange points, asteroids, the moon or Mars," Krone says.
The breakthrough focuses on Lagrange points - five areas in space where an object such as a satellite can stay in the same place relative to the Earth and the Sun.
These, known as Lagrange points, exist where the gravitational attractions from two celestial bodies are exactly equal.
In the 18th century, European mathematicians Leonhard Euler and Joseph-Louis Lagrange discovered that in this rotating frame there are five gravitational sweet spots, now called Lagrange points. At these equilibrium points, the competing pulls on the third body balance each other, and the body remains motionless.