Spectral energy distribution for the star R2175 (Gaia DR3 3326717260430731648) as measured by VOSA (black dots). The red spectrum is a model from Castelli (2003) with the parameters T_eff = 13 000 K, log g = 4.0 and [Fe/H]= − 0.5 dex. The vertical green line denotes the effective wavelength of the WISE W2 band from the point at which the measured SED deviates from the model spectrum, and the IR excess starts to show.