Jewel Box star cluster, optical-IR image

Jewel Box star cluster, optical-IR image

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Caption: Jewel Box star cluster (NGC 4755), combined optical and infrared image. This star cluster is around 6500 light years distant in the constellation of Crux. This grouping of stars is renowned for the contrast in colour between a red supergiant (centre), and the remaining bright stars which are blue/white supergiants. These massive stars are thought to be around 80,000 times more luminous than the Sun. This image was obtained by the Wide Field Imager (WFI) on the MPG/ESO 2.2-metre telescope at the European Southern Observatory (ESO)'s La Silla Observatory, Chile. Image published in 2009.

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Keywords: 2009, astronomical, astronomy, astrophysical, astrophysics, blue supergiant, bvi filters, crux, eso, infrared, ir, jewel box, kappa crucis, max planck gesellschaft, mpg, mpg/eso 2.2-metre telescope, ngc 4755, optical, red supergiant, space, star cluster, supergiants, universe, visible, wfi, wide field imager

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