LOFAR images of the galaxy VCC 144 at resolutions of 9″ × 5″ (left panel) and 20″ (center panel), and the corresponding optical image of the DESI Legacy Imaging Survey DR9 (Dey et al. 2019) with the 20″ LOFAR contours starting from 3σ and increasing in powers of two (right panel). The region outlined in green in the central panel marks the area used for the flux density measurement at high- and low-resolution. The measured flux density is displayed in the top left corner and the background RMS σ_rms of the maps at the bottom. In the right panel, the pink arrow marks the direction of and distance to the cluster center (M 87), and the redshift-independent distance d is reported in the top left.