The **L _{2}** point lies on the line defined by the two large masses, beyond the smaller of the two. Here, the gravitational forces of the two large masses balance the centrifugal force on the smaller mass.

**Example:**On the side of the Earth away from the Sun, the orbital period of an object would normally be greater than that of the Earth. The extra pull of the Earth's gravity decreases the orbital period of the object, and at the L_{2}point that orbital period becomes equal to the Earth's.

The Sun–Earth L_{2} is a good spot for space-based observatories. Because an object around L_{2} will maintain the same orientation with respect to the Sun and Earth, shielding and calibration are much simpler. The Wilkinson Microwave Anisotropy Probe is already in orbit around the Sun–Earth L_{2}. The future Planck satellite, Herschel Space Observatory, Gaia probe, and James Webb Space Telescope will be placed at the Sun–Earth L_{2}. Earth–Moon L_{2} would be a good location for a communications satellite covering the Moon's far side.

If the mass of the smaller object (M_{2}) is much smaller than the mass of the larger object (M_{1}) then L_{1} and L_{2} are at approximately equal distances *r* from the smaller object, equal to the radius of the Hill sphere, given by:

- $ r \approx R \sqrt[3]{\frac{M_2}{3 M_1}} $

where *R* is the distance between the two bodies.

This distance can be described as being such that the orbital period, corresponding to a circular orbit with this distance as radius around M_{2} in the absence of M_{1}, is that of M_{2} around M_{1}, divided by $ \sqrt{3}\approx 1.73 $.

Examples:

## Lagrange 2 in Gundam

### Anno Domini

An asteroid base (Rezorus)of the anti-government resistance base Katharon and CBS Celestial Being are located at L2 in the series.

### Universal Century

The colonies of Side 3 are located at L2 in this universe.

## External Links

Anno Domini Locations
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Celestial Being | |
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Moon Terminal | Krung Thep | Lagrange 1 | Lagrange 2 | Lagrange 3 | Lagrange 5 | Pacific Islands | Northwestern Africa
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United Nations Forces / Earth Sphere Federation | |

Union of Solar Energy and Free NationsJapan | MSWAD | |

Advanced European UnionMoralia | Ireland | |

Human Reform LeagueTaklamakan Desert | True Pillar | |

Middle Eastern Countries | |

Republic of Krugis | Kingdom of Azadistan | Kingdom of Suille |