Spectral energy distribution of Gl 486. The apparent fluxes (coloured filled circles) are imposed on a BT-Settl CIFIST spectrum (grey; T_eff = 3200 K and log g = 5.5). The modelled fluxes are depicted as black empty circles. The photometric datum in u’ (purple cross) was not considered for integrating the bolometric luminosity. Horizontal bars represent the effective widths of the bandpasses (equivalent to the horizontal size of a rectangle with height equal to maximum transmission and with the same area that the one covered by the filter transmission curve), while vertical bars (visible only for relatively large values) represent the flux uncertainty derived from the magnitude and parallax errors. See details in Cifuentes et al. (2020).