Best-fitting SED models for G45.47. The filled circles indicate the measured fluxes at the JHK 2MASS bands, Spitzer-IRAC bands at 5.8 and 8.0 μm, and the WISE bands at 3.4, 4.6, 12, and 22 μm. Triangles indicate fluxes considered as upper limits, as MSX bands at 14 and 21 μm and the SCUBA band at 850 μm. Black and gray solid curves represent the best-fit model and the subsequent good fittings, respectively. The dashed line shows the best-fit model for a central source contribution in absence of circumstellar dust.