Stellar characterisation for one of the targets in our sample. Upper panel: SED fit for S1429. Datapoints in blue are flux values from available broadband photometry with the error in the x-axis direction corresponding to the passband of the filter and the y-error corresponding to the 1σ uncertainties of the flux. The best-fitting Phoenix model is plotted in black. Purple diamonds represent the flux value of the synthetic photometry from the Phoenix model in each passband. The residuals normalised to the errors of the photometry are shown below. Lower panel: isochrone fit for S1429.