Wide-field View of The Jewel Box Star Cluster: NGC 4755 | ESO
Several very bright, pale blue supergiant stars, a solitary ruby-red supergiant and a variety of other brilliantly colored stars are visible in the image, as well as many much fainter ones, often with intriguing colors. The huge variety in brightness exists because the brighter stars are 15 to 20 times the mass of the Sun, while the dimmest stars are less than half the mass of the Sun.
Distance: 6,500 light years
The field of view is 20 arcminutes across. The picture is based on images obtained through B, V and I filters.
Credit: European Southern Observatory (ESO)
Release Date: Oct. 29, 2009
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