... Star Atlas . ... Measuring gravity's pull at the surface of distant stars . Researchers have found a new way to measure the pull of gravity at the surface of a star. ... A red giant star (the far-future fate of our Sun, with a diameter about 35 times larger) has a much weaker pull at its surface, so you'd be 50 times lighter. ... The new method allows scientists to measure surface gravity with an accuracy of about four per cent, for stars too distant and too faint to apply current techniques. ...