Lagrangian point

(redirected from Second Lagrange Point)

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.]

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
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References in periodicals archive ?
JWST will orbit the sun at a distance of 1 million miles farther than Earth, at a point known as the second Lagrange point, or L2.
The service module of a lunar orbiter that flew back to Earth in November had been sitting in a position that brought in into sync with Earth's orbit, known as the second Lagrange point.
Euclid will be in an orbit around the second Lagrange point (L2) about one and a half million kilometres behind the Earth, when looking from the Sun, from where it will observe nearly all of the extragalactic sky (>15,000 degA) for a period of six years.
China's second moon orbiter, the Chang'e-2, sent back its first batch of data while orbiting the second Lagrange Point (L2) about 1.
The satellite is now orbiting the second Lagrange Point, nearly a million miles away from the Earth.
It is destined for a Lissajous orbit about the second Lagrange point (L2) of the Earth-Sun system, 1.
With launch currently planned for mid-2007, this satellite will, after a coasting phase of several months, be stationed approximately 1 million miles from the Earth at a location called the second Lagrange point in the Earth/Sun system and transmit data to Earth for a period of up to 4 years.
It has arrived at what is called the second Lagrange Point, which is where gravity from both the Sun and Earth balances the orbit of the satellite.
The spacecraft has also just entered its final orbit around the second Lagrange point of the Sun-Earth system, L2.

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