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List of black holes
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List of black holes
This list of black holes (and stars considered probable candidates) is organized by mass (including black holes of undetermined mass); some items in this list are galaxies or star clusters that are believed to be organized around a black hole. Messier and New General Catalogue designations are given where possible.
As of June 2026[update], dozens of gravitational wave events have been observed, most of them of binary black holes merging. Some notable events where the result of the merger was a single black hole include:
In addition, the signal of several binary black holes merging into a single black hole and in so doing producing gravitational waves have been observed by the LIGO instrument. These are listed above in the section Black holes detected by gravitational wave signals.
As of 2014, there are 5 triple black hole systems known.
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List of black holes
This list of black holes (and stars considered probable candidates) is organized by mass (including black holes of undetermined mass); some items in this list are galaxies or star clusters that are believed to be organized around a black hole. Messier and New General Catalogue designations are given where possible.
As of June 2026[update], dozens of gravitational wave events have been observed, most of them of binary black holes merging. Some notable events where the result of the merger was a single black hole include:
In addition, the signal of several binary black holes merging into a single black hole and in so doing producing gravitational waves have been observed by the LIGO instrument. These are listed above in the section Black holes detected by gravitational wave signals.
As of 2014, there are 5 triple black hole systems known.