page_title: DU Crucis
section_title: Location
hierarchical_section_title: DU Crucis / Location
caption_attribution_description: English: The FORS1 instrument on the ESO Very Large Telescope (VLT) at ESO’s Paranal Observatory was used to take this exquisitely sharp close up view of the colourful Jewel Box cluster, NGC 4755. The telescope’s huge mirror allowed very short exposure times: just 2.6 seconds through a blue filter (B), 1.3 seconds through a yellow/green filter (V) and 1.3 seconds through a red filter (R).
context_page_description: DU Crucis is a red supergiant and slow irregular variable star in the open cluster NGC 4755, which is also known as the Kappa Crucis Cluster or Jewel Box Cluster.
context_section_description: DU Crucis is one of the brighter members of the Jewel Box Cluster and the brightest red supergiant, strongly contrasting with the other bright members which are blue supergiants. It is part of the central bar of the prominent letter "A"-shaped asterism at the centre of the cluster.  The cluster is part of the larger Centaurus OB1 association and lies about 8,500 light years away.
  The cluster is just to the south-east of β Crucis, the lefthand star of the  Southern Cross.
caption: A Snapshot of the Jewel Box cluster (Credit: ESO VLT).
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