Leo Cluster
Galaxy
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The Leo Cluster is a galaxy cluster about 330 million light-years distant in the constellation Leo, with at least 70 major galaxies. The galaxy known as NGC 3842 is the brightest member of this cluster. Wikipedia
Constellation: Leo
Brightest member: NGC 3842
Distance: 113 Mpc (368.6 Mly) for h−1; 0.705
Number of galaxies: ~100
Redshift: 0.022 (6 595 km/s)