Ophiuchus Supercluster


Ophiuchus Supercluster is a nearby galaxy supercluster in the constellation Ophiuchus. The supercluster forms the far wall of the Ophiuchus Void; it may also be connected in a filament, with the Pavo-Indus-Telescopium Supercluster and the Hercules Supercluster. This supercluster is centered on the cD cluster Ophiuchus Cluster, and has at least two more galaxy clusters, four more galaxy groups, several field galaxies, as members.
In February 2020, astronomers reported that a 100 million light-year wide cavity in the Ophiuchus Supercluster originated from the ejection of ~270 million solar masses from a nearby supermassive black hole, the largest known explosion in the Universe since the Big Bang.

Discovery

Ken-ichi Wakamatsu of the Gifu University and Matthew Malkan discovered Ophiuchus Cluster in 1981 on Palomar Schmidt IV-N Plates during hidden globular cluster survey.