All face-on, 5–5000 au simulated SEDs, and the stellar SED MARCS model (in black). The dust masses are 10⁻⁴ (blue), 10⁻⁵ (green), 10⁻⁶ (red), 10⁻⁷ (cyan), and 10⁻⁸ M_⊙ (magenta). Top row: SEDs from CSE with 100% sphere, spiral and disc, respectively. Second row: combined sphere-spiral model SEDsand a comparison between the photometry listed in Table 2 (orange data points) and the MARCS model.