A Lagrange point is a point in space where the gravitational forces of two larger bodies, for example stars or planets, and the centrifugal force of a third, smaller object at that point cancel each other out. This allows the third object, for example a starship, to assume a fixed position relative to the other two objects without any power consumption.

Within star systems, several such points existed.

The Rigel VII Lagrange colony was located at one of Rigel VII's Lagrange points. (TNG-R: "Inheritance")

When a Delta Rana warship virtually appeared out of nothing in the proximity of Delta Rana IV, Riker assumed that the ship was riding a Lagrange point behind Rana IV's farthest moon. (TNG: "The Survivors")

Furthermore, the L5 Test Station and L5 colony are likely associated with Earth's fifth lagrange point, generally called L5.

External linksEdit