= Gullstrand–Painlevé coordinates
{wiki=Gullstrand–Painlevé_coordinates}
Gullstrand–Painlevé coordinates are a special type of coordinate system used in general relativity to describe the geometry of spacetime in a way that simplifies some aspects of the mathematical treatment of black holes. These coordinates provide a way to express the metric of a black hole's spacetime that is particularly useful for understanding the motion of particles and light in the vicinity of the black hole.
Back to article page