Still in need for actual dataset
The Coma supercluster is a very famous supercluster. This map below is a plot of the brightest galaxies (from the Principal Galaxies Catalogue) in this region of the sky. Dominating this picture is the Virgo cluster - the nearest rich cluster in the universe and the dominant cluster in the the Virgo supercluster. Above the Virgo cluster and much further away are two much richer clusters - A1367 and A1656. These are the two main clusters in the Coma supercluster.
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