SPIPS results for η Aql (a) and X Sgr (b) as a function of the pulsation phase. Above the figures, the p factor is indicated, along with the fitted distance d, the fitted color excess E(B − V), and the parametric CSE model. The thick gray line corresponds to the best SPIPS model, which is composed of the latter model without CSE plus an IR excess model. In the angular diameter panels, the gray curve corresponds to limb-darkened (LD) angular diameters. We provide references for the observations in Table B.2.