Plane-of-sky region toward the C of the posterior mean of Edenhofer et al. (2024b). Panel a: Planck 2013 extragalactic E(B − V) extinction toward the C converted to A_V via A_V = 3.1 ⋅ E(B − V). Panel b: visual extinction, A_V, between 165 pc and 220 pc toward the C-shaped structure in the 3D interstellar dust map. Spurs of Lupus are seen on the left edge. Both panels display the extinction in units of magnitude, and the colorbars are linear but clipped at an extinction of A_V = 2 mag.