Left panel: structure observed in SAO 206462 in the J-band polarized continuum with r² scaling (with permission of Stolker et al. 2016). The small bar on the lower left shows a linear scale of 28 AU at the assumed distance to the object of 140 pc. Right panel: snapshots of the distribution of 6000 sticky particles in orbits about a 1.7 M_⊙ star perturbed by a 0.0068 M_⊙ planet on orbit with semi-major axis of nearly 85 AU and an eccentricity of 0.061.