Comparison of the global SED between the NGC 628-like galaxy simulation and actual observations. Upper panel: global SED of the NGC 628-like galaxy simulation at t = 10 Gyr shown with the black solid line. Blue dashed and red dash-dotted lines represent the intrinsic stellar and dust emission, respectively. The orange and blue diamonds correspond to the simulated and observed photomeries of the total SEDs (van der Giessen et al., in prep.), respectively. Lower panel: difference in the photometries between the simulation and observation data.