Not all galaxies have the luxury of possessing a simple moniker or quirky nickname. This impressive galaxy imaged by Hubble is one of the unlucky ones, and goes by a name that looks more like a password for a computer: 2XMM J143450.5+033843...
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Clusters can contain anything between about 100 and 1000 galaxies and can be between about 5 and 30 million light-years across. Galaxy clusters do not come in neatly defined shapes so it is difficult to determine exactly where they begin and end. However, astronomers have estimated that the centre of the Fornax Cluster is in the region of 65 million light-years from Earth...
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