Four epochs of MWC 480 observations: N. Kusakabe et al. (2012) HiCIAO 2010 January 24; A. Garufi et al. (2024) SPHERE 2018 November 27; B. B. Ren et al. (2023) SPHERE 2021 December 10; and this work SCExAO/CHARIS 2022 January 24. All images are north-up, east-left. The images are normalized to the peak brightness. The original sign of the pixel values is conserved. The HiCIAO observation has no available Q_ϕ data so the PI product is shown. We note two shadow-like brightness dips in our SCExAO observation. Major (143°) and minor (53°) axes —determined by the disk model fitting (Section 3.2)—are indicated by the dotted lines. Note, all angles are measured here with north-up as 0°.