The Antlia Cluster (Abell S0636) is a cluster of nearly 300 galaxies located 150 million light years in the Hydra-Centaurus Supercluster. The Antlia Cluster is the third closest cluster to us after the Virgo and Fornax Clusters.
The faintest members of the grouping are dwarf galaxies with magnitude ranges of 19 to 22.
The cluster features two giant elliptical galaxies NGC 3528 and NGC 3268.
Imaged in LRGB on my Planewave CDK 1000 at Observatorio El Sauce, Chile.
Image acquisition and processing: Mike Selby