Comparison of light curves in far UV and red regions of CU Vir spectrum. Blue circles and red squares denote synthetic magnitudes derived from IUE and STIS spectra and lilac points are the measurements from SMEI satellite. Wavelengthsare expressed in nanometers. Phases are calculated using ephemeris Eq. (4) applying parameters given in Table 2. Green lines are the fits of the light curve phenomenological model Eq. (3), assuming two photometric spots with photocenters at the phases 0.303 and 0.598 (denoted using vertical black dotted lines). Light curves were plotted relative to the mean value of the fits and vertically shifted to separate individual plots.