Enlargements of the central 2 arcsec² of the images in Fig. 2. The central star, clearly visible in the [S II] image, becomes much fainter, nearly disappearing, in the [N II] and Hα images; tick marks on the margins point to its location in these frames. However, a bright nebular knot located 0﹩\farcs﹩34 (≈500 AU) south of the central star remains prominent, suggesting the presence of a bluer companion.