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Can someone tell me the difference between the Eridanus Cluster and the Eridanus Group - as stated in this article, not the Eridanus Group (subgroup), which is its subgroup (at a closer distance of 14.2 Mpc)? They are both part of the Eridanus-Fornax-Dorado Filament. Both the cluster and the group are said to be at a distance of 23 and 23 ± 2 Mpc, both consist of about 200 galaxies, and both have masses of 7 x 10^13 to 10^14 Msol. Furthermore both NGC 1407 and NGC 1332 are members of both structures. Aren't they one and the same object and shouldn't we merge the separate two articles after the respective corrections?--Bobbylon (talk) 00:36, 13 June 2017 (UTC