Spectral energy distribution (SED) of source G8540A using the NICS (1.2 to 2.2 μmm), IRAC (3.6 to 8 μmm), CID (9 to 17 μmm), MSX (23 μmm), MIPS (70 μmm) and SCUBA (450 and 850 μmm) mesurements. The two best-fit models of the SED derived from the Robitaille et al. (2007) fitting tool are over-plotted with solid lines. The dashed line represents the stellar photosphere used as input to the radiation transfer code. The parameters of the model that best fit the SED (dark solid line) are listed in Table 4.