IC 1101

Galaxy in the constellation Virgo

IC 1101 is a class S0 supergiant (cD) lenticular galaxy at the center of the Abell 2029 galaxy cluster. It has an isophotal diameter at about 123.65 to 169.61 kiloparsecs (400,000 to 550,000 light-years). It possesses a diffuse core, which is the largest core of any galaxy known to date, and contains a supermassive black hole, one of the largest discovered.

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