SED fit for HD 100453. The circles represent the photometry and the solid purple curve, the best SED model from the MCMC posterior distribution. The model consists of two individual blackbody components that are visualized by the dashed lines: the blue curve represents the stellar flux density whereas the red curve shows the flux density of the circumstellar dust. The dotted line indicates the GRAVITY reference wavelength of 2.25 μm, at which we evaluate the dust flux contribution.