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Abell Catalog

(Catalogue of Rich Clusters of Galaxies)
(galaxy cluster catalog assembled over 1950s-1980s)

The Abell Catalog (a Catalogue of Rich Clusters of galaxies) is a catalogue of Galaxy Clusters begun in the 1950s and updated into the 1980s, ultimately including 4073 clusters. They were identified in the photographic plates of the Palomar Observatory Sky Survey and the UK Schmidt Southern Sky Survey (the UK Schmidt Telescope's original survey).

(catalog,galaxy clusters)
AbellAbell 3627Abell Catalog 
ACOACO 3627Abell Catalog