Members
Some interesting members of Abell’s catalog include:
- A426, the Perseus Cluster
- A1367, the Leo Cluster
- A1656, the Coma Cluster
- A2151, the Hercules Cluster
- A3526, the Centaurus Cluster
About 10% of Abell clusters at redshift z < 0.1 are not genuine rich clusters but, rather, the result of the superposition of sparser groupings. Interestingly, the extremely large and extremely rich Virgo Cluster was excluded from the Abell catalog because it covered too large an area of the sky to appear on a single photographic plate.
Read more about this topic: Abell Catalogue
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