Synthetic SED of the binary system HD 130669 constructed using Al-Wardat’s complex method and Kurucz’s ATLAS9 model atmospheres. The total flux (black), flux of component A (blue), and flux of component B (orange) are shown. Overplotted are observed photometric fluxes from 2MASS (J, H), Gaia (BP, RP), and Johnson photometry (B, V), with their respective magnitudes. This comparison validates the consistency between the synthetic model and observed data across a wide wavelength range (3500–18000 Å).