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What is the shape of black hole?
The event horizon of a black hole is spherical.
How big do event horizons get?
Assuming you mean the event horizon of a black hole (there are other types as well), the diameter of a black hole as measured by its event horizon is directly proportional to its mass. The larger the mass, the larger the diameter. Thus, as a black hole's mass increases, it will get bigger. The only limitation is how much mass a black hole is able to incorporate from its surroundings.
What planet has a event horizon?
No planet has an event horizon. A black hole has an event horizon; it is the radius within which light cannot escape.
What is the length of a black hole?
The diameter is usually considered the diameter of the event horizon. The diameter of this event horizon is directly proportional to the black hole's mass. More information at http://en.wikipedia.org/wiki/Schwarzschild_radiusThe diameter is usually considered the diameter of the event horizon. The diameter of this event horizon is directly proportional to the black hole's mass. More information at http://en.wikipedia.org/wiki/Schwarzschild_radiusThe diameter is usually considered the diameter of the event horizon. The diameter of this event horizon is directly proportional to the black hole's mass. More information at http://en.wikipedia.org/wiki/Schwarzschild_radiusThe diameter is usually considered the diameter of the event horizon. The diameter of this event horizon is directly proportional to the black hole's mass. More information at http://en.wikipedia.org/wiki/Schwarzschild_radius
What star has an event horizon?
That refers to a black hole - but a black hole is not exactly a star.
How does the photon sphere of a black hole compare to its event horizon?
The photon sphere of a black hole is a region where light can orbit the black hole before being pulled in, while the event horizon is the point of no return where nothing, not even light, can escape the black hole's gravitational pull. The photon sphere is closer to the black hole than the event horizon.
What is a black hole's boundary?
its called the event horizon
What is the place of no return?
The event horizon of a black hole.
How big is the event horizon of a 100 solar mass blck hole?
The event horizon of a black hole is directly related to its mass. For a 100 solar mass black hole, the event horizon radius would be about 295 kilometers (183 miles). This is the point of no return beyond which nothing, not even light, can escape the black hole's gravitational pull.
What is the difference between a black hole's photon sphere and its event horizon?
A black hole's photon sphere is the region around the black hole where photons can orbit in a stable circular path. The event horizon is the boundary beyond which nothing, not even light, can escape the gravitational pull of the black hole. In simpler terms, the photon sphere is where light can circle the black hole before falling in, while the event horizon marks the point of no return.
What are the two parts of the black hole?
The two parts of a black hole are the event horizon and the singularity. The event horizon is the "surface" of the black hole, and is imaginary. The event horizon's appearance is caused by the bending of light. The singularity is a point of space where everything that gets sucked in is crushed to about the size of an atom.
Is there any other black hole gravity apart from the event horizon?
Gravity is towards the center of the black hole. The event horizon is not what attracts objects - it is simply the "point of no return".
