Hertzsprung–Russell diagram for the components of V923 Sco. Left panel: isochrones and evolutionary tracks of Girardi et al. (2000); right panel: those of Demarque et al. (2004). The tracks assuming convective overshooting and solar metallicity were selected in both cases. The temperature uncertainties were set to 200 K. The absolute parameters of the components correspond to the combined solution of MOST light curve and published radial-velocity data.