Fact Sheet
Galactic Giant
NGC 4874, the bright blob at right in this Hubble Space Telescope image, is one of the largest and most massive galaxies in the universe, known as a cD galaxy. It is more than 300 million light-years away in the Coma Cluster, a gravitationally bound collection of thousands of galaxies. NGC 4874 spans perhaps 10 times the diameter of our own galaxy, the Milky Way, and may have a trillion stars or more. [NASA/STScI/Coma HST ACS Treasury Team]
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