Spatial distribution of the 78 cluster members inside a region of 7.5′×7.5′, 0.65 Mpc (∼0.6 r₂₀₀) at the cluster redshift, from the cluster centre. Cluster member positions are marked with a square with size proportional to exp(δ_i) computed using the δ_i deviations obtained in the DS test. Red and blue correspond respectively to galaxies with higher and lower δ_i deviations from the mean, ⟨δ_i⟩. The large and small black lines represent the directions of the velocity gradients of the whole sample in the inner region, respectively. Similarly, the magenta and green lines represent the orientations of the galaxy density distributions and X-ray surface brightness map, respectively. The BCG, BCG2 and BCG3 positions are marked with filled dots.