Object name: NGC0609
NGC 609 is a type II3r open cluster in Cassiopeia about 13,000 light-years distant according to WEBDA. They put its age at about 1.7 billion years making it a rather old cluster and thus explaining its lack of bright blue stars which have long since died. It shows only about 0.35 magnitudes of reddening not enough to redden it to any appreciable degree. Thus its age is the main reason for its unusually red color. It also apparently has a rather high mass to have held together for so long.