3′×3′ cutout of the i_PS1 image around PSO J191+86 overlaid with the radio contours from NVSS (1.4 GHz, cyan), WENSS (325 MHz, blue), and VLASS (3 GHz, yellow). In all cases, contours are spaced by starting from three times the survey rms (NVSS = 0.42 mJy beam⁻¹; VLASS = 160 μJy beam⁻¹; WENSS = 2.7 mJy beam⁻¹). A zoom onto the VLASS emission is shown in Fig. 4. The red cross indicates the optical position of the source.