How much smaller does the sun appear because of it's gravitational field ? This illustration shows EM waves being bent by the gravitational well of the sun. The light from the sun itself will also be bent by its gravitational well, making the sun appear smaller , ( and have barrel distortion ). So how much smaller does the sun's disc appear, compared with it's true diameter ?. [ Next question: what will be the shrinkage with giant stars whose mass is 1000x suns ? ].