answersLogoWhite

0

How is the sun and a black hole different?

Updated: 8/19/2019
User Avatar

Wiki User

10y ago

Best Answer

The sun is a star; a black hole is (often) a stellar remnant. The sun maintains its shape from the outward thermal pressure from fusion processes in its core to balance against the inward pull of gravity; a black hole (of a collapsar) a result of a failure of the outward pressure to create this equilibrium and thus allow gravity to dominate and the star to collapse. From a stellar evolutionary standpoint, the sun is about halfway through its fuel; a black hole can be formed at the end point of a star's lifespan when its fuel is exhausted. (Note the sun does not have sufficient mass to become a black hole). The sun is highly radiant; a black hole itself does not radiate although matter falling into it can become highly luminous owing to friction and processes which convert matter into energy. Anatomically the sun and a black hole are significantly different; the sun does not have a singularity of infinite density and infinite spacetime curvature at its core whereas a black hole does; the sun does not have an event horizon as does a black hole; the Schwarzchild radius of the sun is significantly smaller than evidenced by its radius, whereas a black hole's size is defined by its gravitational radius; one might also say a black hole of a given mass is radically smaller than a star of the same mass. Due to its luminosity a star like the sun is very easy to observe directly - the escape velocity is smaller than 'c'; by contrast, because the escape velocity is greater than the speed of light it is difficult to observe a black hole (since no light escapes). The life span of the sun is predicted from its composition and other factors; the life span of a black hole is determined from the mass it accumulates (or loses through certain quantum effects as it interacts thermodynamically with the universe). Qualitatively all black holes are superficially similar (see the no-hair theorem); such can not be said to be true of solar properties.

These are just some differences.. there are many others and ways to describe those differences.

User Avatar

Wiki User

10y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How is the sun and a black hole different?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Does the sun have an black hole like Jupiter?

No. There not a black hole on the sun or on Jupiter.


When was Black Hole Sun created?

Black Hole Sun was created in 1994-05.


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.


Why does the sun's energy form a black hole?

The sun's energy has not formed a black hole.


Do black hole suck the sun?

In theory, yes, a black hole could suck up the sun.


Why is the sun considred a black hole?

First of all, our sun can not become a black hole, it is too small for that. However if a star is three times bigger than our sun, then yes it will become a black hole.


Does the sun travel around a black hole?

Yes, The sun and the solar system orbit the center of the galaxy where there is a black hole.


Will the sun become a black hole one day?

No. The sun does not have enough mass to become a black hole. When the sun dies it will become a white dwarf.


Can sun escape from a black hole?

No


How big would the sun be if it was a black hole?

Firstly our sun is too small to become a black hole. Only stars that are a million to a billion times our sun do this, because they burn through their fuel quickly, unlike our sun. A typical black hole has 3 times the mass of our sun


Can the sun form a black hole and take earth to another galaxy If yes how I no why not?

No. The sun does not have enough mass to form a black hole. A black hole does not lead to another galaxy. Anything pulled into a black hole becomes part of that black hole's mass. Even then, if Earth were to fall into a black hole the same mass as the sun it would be torn apart by tidal forces long before it crossed the event horizon.


Will a black hole consume the world?

No te sun is to small to create a black hole when it dies