Size Ratio The most important characteristic of any universe is the ratio between the its size and the wavelength of its stratum particles. This ratio varies widely for universes of different scales. The size ratio of our own universe is about 1041. 1026 meters     (radius of our universe)     = 1041 about 10-15 meters     (radius of the nucleus of an atom)     The size ratio of a neutron star is only about 107. 105 meters     (radius of a neutron star)     = 107 10-2 meters     (radius of a superimposed stratum particle)