Jewel Box Cluster

The Jewel Box Cluster or Kappa Crucis cluster is a star cluster over 6,000 light years away in the constellation, Crux (the southern cross).http://www.univie.ac.at/webda/cgi-bin/ocl_page.cgi?dirname=ngc4755 It has many blue supergiant stars, and one red supergiant, DU Crucis.

 References 

Category:Star clusters