Velocity deviations relative to the mean velocity vector, plotted against the angular distance to our best fit to the cloud’s minor axis [l_d = 174.172°, b_d = −12.098°]. The data points for Mg II in this plot (open circles) differ only slightly from those shown in Fig. 3 because the deformation axis pointing toward (l_d,b_d) that defines θ_d is not far from the apex of motion in the direction (l_m,b_m) (see Table 1). The red asterisks show the model predictions.