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It depends. Most black holes are indeed smaller than Mercury, but asteroids vary widely in size. The radius of a black hole's event horizon is directly proportionate to its mass. The largest known stellar mass black holes have about 15 solar masses, which gives a radius of 44 kilometers. This is larger than most asteroids, but some asteroids are larger. It is much smaller than the planet mercury.
However, supermassive black holes are far larger than mercury. An 830 solar mass black hole would have an event horizon about the same size as Mercury. The black hole at the center of the Milky Way has about 4 million times the mass of the sun, giving it a radius of over 7 million miles, or 17 times wider than the sun's radius. The largest known black hole is about 40 billion solar masses, giving it a radius of more than 70 billion miles, making it larger than our solar system.
What else can I help you with?
Are bigger black holes more stronger than smaller black holes?
yep.
Is the earth bigger than a black dwarf?
Earth wold be bigger than some black dwarfs, but smaller than others.
Is the sun bigger then a black hole?
Black holes can be many different sizes. Therefore, there are some black holes that are bigger than the sun, and there are some that are smaller than the sun.
What is smaller than a black bear but bigger than a mule?
A female liom
Are black beauty stick insect girl's bigger or smaller than boys?
The female stick insects are always bigger.
Are mosquitos bigger than flies?
The black fly is smaller than the mosquito!
What is bigger a quasar or a supermassive black hole?
The quasar is bigger. A quasar is a disk of superheated matter that surrounds a supermassive black hole. The mass of the black hole may be greater than that of the disk, but it is compacted into a smaller space.
What is the difference between black swallowtail caterpillars and swallowtail caterpillars?
Easy black swallowtail caterpillars are smaller caterpillars. SwallowTail caterpillars are bigger than black swallow tail caterpillars
If a black hole or an asteroid hit earth what will happend to the ocean?
A black hole would eventually swallow up the entire Earth. An asteroid would provoke great catastrophes - depending, of course, on the mass of the asteroid.
Do black pants really make your bum smaller?
Well, they just make it LOOK smaller. It is an optical illusion or some such thing. Like how horizontal stripes make you look bigger.
What are the differences between American tradition and English tradition in the story The Canterville Ghost?
the difference is that the black people have bigger dicks and the white smaller
Is black holes bigger than galaxies?
A black hole has a much larger mass than a planet. The mass of a black hole, however, is contained in a point that is smaller than some fundamental particles. The event horizon of a typical stellar mass black hole is much smaller than any planet, but the event horizons of supermassive black holes are much larger.
