Direction cosines for pairs of galaxies relative to each of the eight groups in Table 2 (top eight panels) and for the same group centers but shifted in redshift by 0.1 (bottom eight panels). Each point in each panel shows the north‐south (vertical) and east‐west (horizontal) components of the unit 3‐vector normal to the plane defined by each triplet composed of each pair of galaxies and the group center. Details in the text.