Distributions of stellar masses (left panel), star formation rates (middle panel), and colours (right panel) of galaxies in the cluster A2142 (red solid line), and in groups with at least 20 and 100 member galaxies (dashed blue and dotted grey lines, correspondingly) in the distance interval 225− 280 h⁻¹ Mpc from the group catalogue by Tempel et al. (2014b), for galaxies brighter than the completeness limit of A2142, M_r = −19.6 + 5 log₁₀h.