Within this setting, Frenet-Serret frames have been used to model the precession of a gyroscope in a gravitational well.

You may want to read about "gravitational wells"; there are many articles (and pictures) available on-line.

Mountains were ridges of stars whose interacting gravitational wells interfered with the course of the fleet.

The belt was hydrogen, still mating in fusion fire, pulled loose from the stellar surfaces by two gravitational wells in conflict.

A gravity well or gravitational well is a conceptual model of the gravitational field surrounding a body in space.

The shepherding machines had obviously injected enough energy into each stream to kick them out of the gravitational wells of their progenitor worlds.

And then, the habitat ring began to bend like a wheel warping out of true, as if an immense gravitational well had formed in Quark's.

Thank goodness the agrav worked; they would have no trouble maneuvering in steep gravitational wells - that is, landing on Tines world.

Clocks run more slowly in deeper gravitational wells.

Another consequence of the decoupling was that the baryons lost their pressure support and began to collapse into gravitational potential wells.