Galaxy group
structure made up of a gravitationally-bound aggregation of about 50 or fewer galaxies; is smaller than a galaxy cluster
Dorado Group
M94 Group
Leo Triplet
Ursa Major Moving Group
Perseus Cluster
Robert's Quartet
Messier 60
Messier 96
Sculptor Group
M81 Group
M96 Group
Seyfert's Sextet
Centaurus A/M83 Group
Copeland Septet
M51 Group
M101 Group
Abell 400
Pavo-Indus Supercluster
Virgo Cluster
Abell 2199
Abell 262
Ursa Major Cluster
2MASX J13015679+1914556
2MASX J09185946+3451446
2MASX J00212088+2159001
Local Group
Abell 133
Abell 1185
M74 Group
Magellanic Clouds
Stephan's Quintet
Coma I
Shapley 20 Cluster (Abell 3128)
Hydra Cluster
Antlia Cluster
Fornax Cluster
Arp 104
7C 114610.00+594129.00
[T2015] nest 103027
Coma Cluster
C 0422−213
Eridanus Cluster