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They have several names. We can call them black holes, supermassive black holes, Singularities. The size of the black holes may vary and can be measured by their pull of gravity and their radiation. (Not that I want to go close for such a task)
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoUsually they don't name black holes, it's just the sources that are associated with them.
The black hole associated with our galaxy, the Milky Way has the designation Sag A, but as the previous post says, it is the name of the radio source associated with it, since black holes by definition are not observable, only the evidence of their existence is.
Wiki User
∙ 14y agoin Einsteins theory of relativity he described space as a big sheet of stretched rubber and when you put some thing on this rubber like a planet or a star it created a dip this dip is gravity and some stars are so dens that when it dies and collapse in on its self it has so much gravity that it becomes a singularity the center of a black hole and it now has enough streghth it can suck in light. black holes have gravity the nothing can escape from.
Wiki User
∙ 11y agoIf they're Russian scientists, it means they don't like it very much, because "black hole" is an impolite term in Russian referring to an anatomical feature ... the one you're thinking of right now? That's probably it.
However, in general. they're referring to a point-mass; any object with enough mass for its own self-gravitational attraction to overcome neutron degeneracy pressure will collapse into a point... a singularity, in physics terms... and leave around itself an "event horizon", the point at which escape velocity from the object's gravitational field is equal to the speed of light. This is what makes it both "black" and a "hole", as no light can escape from within the event horizon ("black"), and nothing else can either ... anything that passes the event horizon essentially falls out of the universe ("hole").
(Note: don't try to be too poetic about interpreting that "falls out of the universe" thing.)
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How many astronauts went inside the black hole?
For all scientific reasons, no astronaut had went inside a black hole. It would take many earth years to visit the black hole, so reaching a black hole is impossible.
What is an active black hole?
An active black hole is a black hole that it by all manner of terms is "feeding". That is, it is accreting matter, or sucking matter into itself. Most black holes are dormant and don't show any signs of accreting matter.
Does a black hole rotate around the sun?
No. There are not black holes anywhere near our solar system. Even then, scientific models suggest that stellar-mass black holes, the smallest common type, must be at least 3 times more massive than the sun, so the sun would more likely orbit the black hole if one were nearby.
What does a black hole do with what it suck in?
The material sucked in to a black hole becomes part of the black hole - that is, a black hole crushes matter to an nearly no size, at all.
Can any black hole turn into a neutron star?
No. A black hole will remain a black hole. A neutron star is a remnant of a star not massive enough to become a black hole.
Is a black hole an invertebrate?
A black hole is not a vertebrate or an invertebrate. Those terms apply to animals. A black hole is not an animal, nor is it even alive.
How many astronauts went inside the black hole?
For all scientific reasons, no astronaut had went inside a black hole. It would take many earth years to visit the black hole, so reaching a black hole is impossible.
What is an active black hole?
An active black hole is a black hole that it by all manner of terms is "feeding". That is, it is accreting matter, or sucking matter into itself. Most black holes are dormant and don't show any signs of accreting matter.
What happens at the edge of a black hole?
You are referring to the "event horizon" of a black hole. At this point, nothing, not even light, can escape the gravity of the singularity (or black hole). If you were so unlucky to be there, your body would be stretched from the part that is closest to the black hole. Eventually, your body would be one long string of atoms swirling into the black hole. This is called "spaghettification" and is an actual scientific term.
What is the maximum altitude a black hole can be made at?
The question makes no sense. Altitude has nothing at all to do with black hole formation. "Altitude" really only has any significant meaning in terms of Earth and humans, and it is as far as we know absolutely impossible to "make" a black hole at any altitude.
Does a black hole rotate around the sun?
No. There are not black holes anywhere near our solar system. Even then, scientific models suggest that stellar-mass black holes, the smallest common type, must be at least 3 times more massive than the sun, so the sun would more likely orbit the black hole if one were nearby.
Are quasar's different from supermassive black holes?
Yes. In simplistic terms, a quasar is the result of a supermassive black hole. The gravitational attraction of the supermassive black hole on the galaxy, causes the effect of the quasar. See related questions for more information.
A collapsed star from which light cannot escape?
The collapses star gets squeezed by collapses gas and turns into a black hole.
What is the difference between a Scchwarzschild and a Kerr black hole?
A Schwarzschild black hole is a non-rotating black hole. The Kerr black hole is a rotating black hole. Since the latter is more complicated to describe, it was developed much later.A Schwarzschild black hole is a non-rotating black hole. The Kerr black hole is a rotating black hole. Since the latter is more complicated to describe, it was developed much later.A Schwarzschild black hole is a non-rotating black hole. The Kerr black hole is a rotating black hole. Since the latter is more complicated to describe, it was developed much later.A Schwarzschild black hole is a non-rotating black hole. The Kerr black hole is a rotating black hole. Since the latter is more complicated to describe, it was developed much later.
Is a black hloe a black body?
No. These two scientific terminologies have pretty much nothing in common beyond having the word "black" in them. Light emitted from a black hole is not, in any way, the same as black body radiation.
What does the black hole do to the star?
A black hole originated as a star, that is, the star converted to a black hole.
What gets bigger when more is taken away?
a wormhole or black hole, the more matter it consumes or removes from its surroundings, the more its instability or mass increases, therefore its absorption power. Scientific studies say, and it is proven that, the Milky Way has a supermassive black hole in the center galactic, named Sagittarius A*. Many, if not all galaxies are believed to harbor a supermassive black hole at their center.
