“Alt–az” diagram for the case ﹩{e}_{{\rm{planet}}}=0.25﹩. Synthetic scattered light images of the debris disk are shown as a function of the observer’s altitude (alt = 0°/90° gives an edge-on/pole-on view of the planet’s orbit) and azimuth (az = 0°/180° has the planet’s apoapse/periapse pointing toward the observer). For this and other alt–az figures, we use an image scaling proportional to the square root of the surface brightness. Each alt–az snapshot is constructed from an 800 au × 800 au grid, smoothed by convolving with a 2D Gaussian having a standard deviation of 2 au, and truncated vertically to 400 au. The convolution shrinks the dust inner cavity; we restore the cavity seen in the pre-smoothed image by masking out the corresponding pixels. The surface brightnesses of the brightest features are ∼600 (10⁴) times higher than that of the faintest features in the face-on (edge-on) view. The yellow dot in each panel marks the location of the central star.