χ² as a function of the input visual extinction value used in the SED fit of our planet candidate 19b1-02162. Although the value of A_v ~ 0.6 mag results in the lowest χ², we use the value of A_v = 0.21 mag, which is based on the upper limit extinction adopted from the NASA/IPAC Extragalactic Database, since an extinction of A_v = 0.6 mag would be physically non-realistic. The upper limit mentioned above is shown with the green solid line. The periodic distribution of the χ² is due to the variation of six different stellar spectral-types.