Top panel: supergalactic SGX−SGZ projection of all northern Cosmicflows-4 galaxies with 19,000 < V _cmb < 26,000 km s⁻¹. Bottom panel: same as the top panel with the addition in red of a circle of radius 11,300 km s⁻¹ centered at SGX _c = −400 km s⁻¹, SGZ _c = 5000 km s⁻¹ and blue crosses at the locations of Abell clusters A1781, A1795, A1825, and A1831.