Lagrangian point

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La·gran·gi·an point

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

(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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It will be positioned near the second Lagrange point (L2) of the Earth-Sun system.
These structures would hover around Earth at the Lagrange point - the altitude at which the Moon and Earth exert equal-but-opposite gravitational forces.
Then finally, on Saturday the Russian space agency successfully launched it out of Earth's orbit and onto the ( L2 Lagrange point.
Roscosmos said the telescope, named Spektr-RG, was delivered into a parking orbit before a final burn Saturday that kicked the spacecraft out of Earth's orbit and on to its final destination: the L2 Lagrange point, according to the Associated Press (AP).
Spektr-RG will next navigate to a stable orbit in space called a Lagrange point (specifically, L2), where the gravitational forces of two large objects -- in this case, the sun and the Earth -- balance each other out.
As per the observatory's schedule, Spektr-RG will cruise to the Lagrange Point 2 located 1.5 million kilometres from Earth before beginning a 4-year all sky survey.
The so-called Lagrange Point, also known as L1 appears to be the best.
NASA Planetary Science Division director Jim Green stated that a powerful magnetic bipole placed at Mars' L1 Lagrange Point could deflect solar winds.
DSCOVR recently reached its station about a million miles away between the Earth and the sun at a Lagrange point, where gravitational fields of Earth and Sun cancel out.
DSCOVR will travel to the so-called Lagrange point, or L1, a spot 1 million miles from Earth and 92 million miles from the sun, where the gravity fields are neutralized.