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From this, the mass of the central black hole of TON 618 has been estimated to be at 66 billion M ☉. [9] This is considered one of the highest masses ever recorded for such an object; higher than the mass of all the stars in the Milky Way galaxy combined, which is 64 billion M ☉ , [ 10 ] and 15,300 times more massive than Sagittarius A* ...
List of most massive black holes Host or black hole name Mass (M ☉) Notes (Maximal Theoretical Limit) 2.7 × 10 11: This is the maximum mass of a black hole that models predict, at least for luminous accreting SMBHs. At around 10 10 M ☉, effects of both intense radiation and star formation in the accretion disc slow down black hole growth.
1ES 2344+514; Ton 618 (this quasar has possibly the biggest black hole ever found, estimated at 66 billion solar masses) [1]; 3C 371; 4C +37.11 (this radio galaxy is believed to have binary supermassive black holes) [2]
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.
Ton 618: 1.3 × 10 41 kg: 1.9 × 10 14 ... or equivalently, by their density, where density is defined as mass of a black hole divided by the volume of its ...
24,100 times the mass of the black hole at the center of the Milky Way (Sagittarius A*) Twice the mass of the Triangulum Galaxy, including its dark matter halo. [11] Assuming it is a non-rotating black hole, an immense event horizon with the Schwarzschild radius of 295.25 billion kilometres (2,000 astronomical units; 0.031 light-years), 50 ...
The supermassive black hole in PG 0844+349 has an estimated solar mass of 2.138×10 7. [16] This makes the galaxy contain one of the largest black holes, but a lower black hole mass putting it between Messier 58 and Centaurus A. Only TON 618 has a higher black hole solar mass of 4.07×10 10 compared to PG 0844+349. [17]
Ton 618 is a hyperluminous quasar and blazar in this constellation, near its border with the neighboring Coma Berenices. It possesses a black hole with a mass 66 billion times that of the Sun, making it one of the most massive black holes ever measured. [28] There is also a Lyman-alpha blob. [29]