EntityQ656181· pop 29· linked from 238 articlesgravitational redshiftSign in to savethe shift of the wavelength of a photon to a longer wavelength when traveling out of a gravitational wellConnectionsparts-per notationEntityspeed of light in vacuumEntityredshiftEntityequivalence principleEntityRobert H. DickeEntityMinkowski diagramEntitytests of general relativityEntityrelativistic Doppler effectEntityMax Planck Institute for Gravitational PhysicsEntitySunConceptAlbert EinsteinPersonphysicsEntityastronomyEntityIsaac NewtonPersonSolar SystemEntityGalileo GalileiEntityironEntityhydrogenEntityuniverseEntityenergyEntityCategoriesAlbert EinsteinEffects of gravity