Spectral energy distribution of WISE0855. Yellow triangles show the magnitude upper limits in Y (this work) and H, K_S, W3, and W4 (Luhman 2014b; Wright et al. 2014). Red circles show measurements from J band (Faherty et al. 2014b); WISE bands W1,W2 and Spitzer IRAC channels 1 and 2. Blue and green points represent the magnitudes derived from convolving the synthetic spectrum with the corresponding filter transmission curves for each model. Finally, the blue curve is the best fitting BT-settl model with temperature T_eff = 240 K, log g = 4, and radius R = 1.17R_Jup, conforming to all upper limits, and the green curve is the best fitting Morley et al. (2014) model, with T_eff = 250 K, log g = 4, f_sed = 7, and 50% of cloud coverage (see Morley et al. 2014 for more details in the parameters). See Sect. 3 for detailed description of the models.