Dependence of various group parameters of the 2MRS catalogue on the luminosity distance. First panel upper row: dependence on the total group luminosity L_tot; second panel upper row: dependence on the observed group luminosity L_obs; third panel upper row: dependence on the group velocity dispersion σ_group; fourth panel upper row: dependence on the group radius R_group; first panel lower row: dependence on the total group mass M_group; second panel lower row: dependence on the stellar mass M_∗; third panel lower row: dependence on the dynamical mass M_dyn; fourth panel lower row: dependence on the number of detected galaxies in the group N_FoF.