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There can be no average diameter for a black hole due to the fact that all black holes are unique in size and diameter, reaching from the diameter of 18 billion suns tied together and less than half a star's diameter. they are all different sizes and no one actually knows for sure whether they are actually holes considering that they are completely invisible to all eyes. because their gravitational pull is so powerful that not even light escapes.

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Geraldine Davis

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4y ago

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Are there black holes the size of stars?

The relevant magnitude is mainly the black holes' mass. Since black holes are the result of collapsing stars, yes, there are black holes with the mass of a star.The diameter is usually taken as the diameter of the event horizon. This diameter is directly proportional to the mass; a supermassive black hole such as Sag A* has a diameter comparable to that of a large star.


How are black holes measured in size?

By the diameter of their event horizon.


Can black holes grow and how?

Black holes can increase in mass (and therefore size; the diameter of a black hole's event horizon is directly proportional to its mass) by accretion, or taking in additional matter and/or energy.


Do blackholes have a diameter Why or Why not?

Yes, black holes have a diameter, which is referred to as the event horizon. The event horizon is the region beyond which nothing, not even light, can escape the immense gravitational pull of the black hole. This diameter can vary depending on the mass of the black hole.


How fat is a black hole?

A black hole can have anywhere between a few Sun masses, and several billion Sun masses (the so-called "supermassive black holes"). The diameter of the event horizon, if that's what you mean, is directly proportional to the black hole's mass - in other words, more massive black holes have a larger diameter.


How big is the largest black hole known?

The most relevant quantity is the black hole's mass. Note that the black hole's diameter (the diameter of the event horizon, really) is directly proportional to its mass. The largest galactic black holes known seem to be around 20 billion solar masses. Check the Wikipedia "List of most massive black holes" for more details. Note that the mass of some of these black holes is not very well-known.


What is the diameter of hole?

There can be no average diameter for a black hole due to the fact that all black holes are unique in size and diameter, reaching from the diameter of 18 billion suns tied together and less than half a star's diameter. they are all different sizes and no one actually knows for sure whether they are actually holes considering that they are completely invisible to all eyes. because their gravitational pull is so powerful that not even light escapes.


Is the black hole big?

Well if your comparing the smallest black hole knowen to humans to the Earth YES THEY ARE BIG but there is no definant diameter or size considering that all black holes are unique in all three size diameter and gravataional pull.


Is the Millky way bigger than a Black Hole?

Yes. Though in theory black holes can have any size, the actual black holes that have been observed, including the so-called supermassive black holes, are tiny when compared to a galaxy. Note that the largest black hole can have the mass - but not the size - of a small galaxy.


What is the diameter of a black hole?

There can be no average diameter for a black hole due to the fact that all black holes are unique in size and diameter, reaching from the diameter of 18 billion suns tied together and less than half a star's diameter. they are all different sizes and no one actually knows for sure whether they are actually holes considering that they are completely invisible to all eyes. because their gravitational pull is so powerful that not even light escapes.


What were black holes before they turned into black holes?

stellar black holes were stars (these are large)primordial black holes were pieces of the big bang (these are microscopic)


Is black hole the size of an atom?

The most relevant quantity is the black hole's mass. Note that the black hole's diameter (the diameter of the event horizon, really) is directly proportional to its mass. The largest galactic black holes known seem to be around 20 billion solar masses. Check the Wikipedia "List of most massive black holes" for more details. Note that the mass of some of these black holes is not very well-known.