Illustration showing two observers viewing a CG from different directions. The black galaxies represent the triplet in real space, and the white arrows indicate their respective peculiar velocities. Each observer sees the galaxies in redshift space with positions distorted according to the projection of their peculiar velocity vectors along the line of sight (galaxies in colours). Observer A (orange) views the triplet from a direction where the projected area on the sky is smaller, but the system is elongated along the line of sight, whereas Observer B (violet) perceives it as more extended in projection and not as elongated along the radial direction.