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2. List of most massive black holes - Wikipedia

   en.wikipedia.org/wiki/List_of_most_massive_black...

   The supermassive black hole at the core of Messier 87, here shown by an image by the Event Horizon Telescope, is among the black holes in this list. This is an ordered list of the most massive black holes so far discovered (and probable candidates), measured in units of solar masses (M ☉), approximately 2 × 10 30 kilograms.

3. List of black holes - Wikipedia

   en.wikipedia.org/wiki/List_of_black_holes

   OJ 287 core black holes — a BL Lac object with a candidate binary supermassive black hole core system [23] PG 1302-102 – the first binary-cored quasar — a pair of supermassive black holes at the core of this quasar [24] [25] SDSS J120136.02+300305.5 core black holes — a pair of supermassive black holes at the centre of this galaxy [26]

4. The Universe (TV series) - Wikipedia

   en.wikipedia.org/wiki/The_Universe_(TV_series)

   A look at the mysteries of black holes and theories about the existence of other kinds of holes, such as "mini" or microscopic black holes that exist at the atomic level; "white holes"—the opposite of black holes where matter is ejected out; and "wormholes"—gateways in hyperspace that connect points in space and time and possibly lead to ...

5. Black Hole Size Comparison Chart Gives New View of Universe

   www.aol.com/news/black-hole-size-comparison...

   The science and philosophy channel Kurzgesagt has come out with a mind-blowing size comparison of the universe's black holes. The post Black Hole Size Comparison Chart Gives New View of Universe ...

6. TON 618 - Wikipedia

   en.wikipedia.org/wiki/TON_618

   Size comparison of the event horizons of the black holes of TON 618 and Phoenix A.The orbit of Neptune (white oval) is included for comparison. As a quasar, TON 618 is believed to be the active galactic nucleus at the center of a galaxy, the engine of which is a supermassive black hole feeding on intensely hot gas and matter in an accretion disc.

7. Supermassive black hole - Wikipedia

   en.wikipedia.org/wiki/Supermassive_black_hole

   Some astronomers refer to black holes of greater than 5 billion M ☉ as ultramassive black holes (UMBHs or UBHs), [19] but the term is not broadly used. Possible examples include the black holes at the cores of TON 618 , NGC 6166 , ESO 444-46 and NGC 4889 , [ 20 ] which are among the most massive black holes known.

8. OJ 287 - Wikipedia

   en.wikipedia.org/wiki/OJ_287

   In order to reproduce all the known outbursts, the rotation of the primary black hole is calculated to be 38% of the maximum allowed rotation for a Kerr black hole. [10] [4] The companion's orbit is decaying via the emission of gravitational radiation and it is expected to merge with the central black hole within approximately 10,000 years. [11 ...

9. Lists of black holes - Wikipedia

   en.wikipedia.org/wiki/Lists_of_black_holes

   English. Read; Edit; View history; Tools. Tools. move to sidebar hide. Actions Read; ... This is a list of lists of black holes: List of black holes; List of most ...