Lagrange point
A Lagrange point was 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, a number of such points existed. 

The Rigel VII Lagrange colony was located at one of Rigel VII's Lagrange points. ()

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

In 3189, the  used its spore drive to jump to Ni'Var, and held position at Lagrange point 1. ()

See also 
 Stationary orbit

External links

Physics
Astronomy
fr:Point de Lagrange