HD 97950, is the central core of a super star cluster within the NGC 3603 H II region. It was catalogued as a single star, but has now been resolved into one of the densest clusterings of stars in the galaxy.
HST image of the HD 97950 cluster
The core of the cluster, with A1/2/3 at the very centre, and B and C to its left
NGC 3603 is a nebula situated in the Carina–Sagittarius Arm of the Milky Way around 20,000 light-years away from the Solar System. It is a massive H II region containing a very compact open cluster HD 97950.
NGC 3603 in visible and near infrared light
NGC 3603 (left) and NGC 3576 are star formation regions in the southern Milky Way.
Image of the NGC 3603 region were obtained in three near-IR filter bands (Js, H and Ks) with the ISAAC instrument at the ANTU telescope