Two of the three brighterstars in this image are part of the clusterCollinder 320 or, at least, their parallax data suggests that they lie in the same region of space. The more easterly of the three, however, seems to be unrelated to the cluster. This is HD 152917, a bright yellowdwarf that is considerably closer than Collinder 320, and so lies in the foreground of this image. Imagery provided by Aladin sky atlas