Catalogue of Galaxies and Clusters of Galaxies

The Catalogue of Galaxies and of Clusters of Galaxies (pr CGCG) was compiled by Fritz Zwicky in 1961–68. It contains 29,418 galaxies and 9,134 galaxy clusters.[1] [2]

gollark: It's approximately similar.
gollark: And we haven't particularly grown in active member count recently.
gollark: It has *mostly* up until issues this year.
gollark: The majority of active members know each other fairly well.
gollark: We should probably aim to... not do this... but it's hard to actually encourage sane well-reasoned debate *even if you don't agree with the other person*.

References
  1. CDS Catalogues Service. "Zwicky Galaxy Catalog".
  2. "Archived copy". Archived from the original on 2016-03-05. Retrieved 2016-04-04.CS1 maint: archived copy as title (link)
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