Best-fit two-component – cold (T_cold ≈ 120 K) amC dust plus hot (T_hot ≈ 430 K) BB – model fit to the four-point JWST/MIRI SED of SN 1993J (day 11 280). Gray regions pertain to models fit to the upper and lower constraints on the fluxes based on the photometric uncertainties, respectively. Model parameters are shown in Table 2. Filled circles denote measured fluxes. The hot component was replaced also by a fixed T = 1000 K BB and a power-law function, causing no significant changes in the parameters of the cold dust component (see details in the text).