The filled circles show the data from Spiter-IRAC at 3.6, 4.5, 5.8 and 8 μm, IRAS at 25 and 60 μm, and AKARI at 9, 18, 65, 90, 140 and 160 μm. The downward directed triangle shows the K-band data, which is treated as an upper limit only. The continuous line shows the best fit model and the gray lines show subsequent good fits for () per data point <3. The dashed line corresponds to the stellar photosphere for the central source of the best fitting model, as it would look in the absence of circumstellar dust (but including interstellar extinction).