(Space Engine) Exploring TON 618 - One of the Largest Known Black Holes

"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. The light originating from the quasar is estimated to be 10.8 billion years old. Due to the brilliance of the central quasar, the surrounding galaxy is outshone by it and hence is not visible from Earth. With an absolute magnitude of −30.7, it shines with a luminosity of 4×1040 watts, or as brilliantly as 140 trillion times that of the Sun, making it one of the brightest objects in the known Universe.[1]
[...]the mass of the central black hole of TON 618 is at least 40 billion solar masses.[3] This is considered one of the highest masses ever recorded for such an object; more than four times the mass of all stars in the Large Magellanic Cloud combined, which is 10 billion solar masses,[9] and 15,300 times more massive than Sagittarius A*, the Milky Way's central black hole. With such high mass, TON 618 may fall into a proposed new classification of ultramassive black holes.[10][11] A black hole of this mass has a Schwarzschild radius of 1,300 AU (about 390 billion km or 0.04 ly in diameter) which is more than 40 times the distance from Neptune to the Sun. "
en.m.wikipedia.org/wiki/TON_618