This cluster has a Trumpler class of IV 2 m, and is considered moderately rich with 305 member stars. It is around 141 million years old; about the same as the Pleiades.
This aggregation has a Trumpler classification of IV 2 m, and is considered moderately affluent with 305 constituent stars. It is approximately 141 million years old; roughly equivalent in age to the Pleiades.