The Jewel Box Star cluster
The Jewel Box Star cluster. The Jewel Box (NGC 4755 at 7,500 light years) in the Southern Hemisphere is one of the youngest known open clusters, about 20 light years across with 198 stars. The stars from Earth are exceptionally beautiful with colors varying from red and yellow, to the more common blue-white with a number of luminous B-type giant stars and a red super giant star. It is also situated near the dark nebula called the Coal Sack. A planet orbiting one of the member stars would have a night sky blazing in brightness with hundreds of stars brighter than Venus or Jupiter at their most brilliant. Several stars may even exceed the brightness of the full moon if we were close enough. These would appear as a dazzling red and several blue stars. The Jewel Box is one of the finest objects in the southern sky.
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