Fig. 7: Topography of major bright patches at Vinalia Faculae.

a–c Colorized digital mosaics of major bright patches, color-coded for elevation (blues are low, reds are high; see Fig. 6 for color scale). Interior labels refer to deposit bright centers described in text. Bright centers labeled a–c are controlled by local topography; center f features dark ring, center g is the most extended and contiguous deposit, and center i marks location of putative constructional dome at 20.36° N, 243.0° E (arrow). See also Supplementary Fig. 3 for stereo views, including dome i. d–f Topographic (black lines) and brightness (red lines) profiles across several bright centers within Vinalia Faculae. Profile d highlights correlation of low topography with bright deposits at center c in a typical western bright center. Profile e highlights dark ring and associated low topography at center of f. Horizontal bar in profile c indicates lateral extent of bright depression, and in e denotes extent of dark ring. Arrow in profile f indicates location of small dome in bright center i.