How Big Is the Biggest Black Hole Sagittarius A
Sagittarius A* is the supermassive black hole at the center of our Milky Way galaxy, with a mass of approximately 4 million times that of our Sun. Its event horizon spans about 40 to 60 million kilometers in diameter, roughly 40 times the size of the Sun. Despite its immense proportions, Sgr A* is considered relatively small compared to the largest black holes in the universe. The colossal TON 618, for instance, boasts a staggering 66 billion solar masses, making Sagittarius A* seem tiny in comparison.
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