Galaxy redshift distribution in the range 0.02 < z < 0.11. The dashed vertical lines delimit the redshift range including 104 galaxy members assigned to RXCJ1111 according to 2.7σv clipping. The inner plot shows the velocity distribution in the cluster rest frame. The black Gaussian curve represents the velocity reconstruction according to the biweight method and assuming that all the galaxies are part of a single system. The velocity corresponding to the BCG, and the second and the third brightest galaxies are labelled as BCG, 2 and 3, respectively.