Neutron stars, such as the one at the center of the Crab Nebula, have about the same mass as our sun, but a much smaller diameter. If you weigh 660 N N on the earth, what would you Neutron stars, such as the one at the center of the Crab Nebula, have about the same mass as our sun, but a much smaller diameter. on the surface of a neutron star that has the same mass as our sun and a diameter of 20.0 km k m ?