The optical identifications of 11 radio sources with the stars were carried out in the open cluster NGC2232. We used LKL method that showed high efficient in fitting celestial radio objects to optical objects. The number of radio objects identified with stars has increased tenfold. Correct optical identification of radio sources with the stars allows studying the nature and evolution of stars in a broad wavelength and determining their location in space. When carrying out optical identifications of radio sources, radio refraction discovered by us in the interstellar and intergalactic environments which should be taken into account.