Need help for physics homework

[burgess]

What happens to earth planet orbit, If the sun collapsed to become a black hole?

 

May be a silly question but i want the answer, please explain

[Nicholas Kang]

Our sun has one solar mass and it wouldn`t evolved into supergiants. The Sun will finally evolved into a red giant and then when the He fuel runs out, a planetary nebula will take place. What is left will be just a white dwarf which finally shrinks and fade off to form a black dwarf.

 

Our Earth will be "evaporated" as the Sun`s expand due to core collapsing inwards and the Sun will eventually reaches beyond Venus orbits and maybe Earth or beyond. So, there might be a possibility of Earth either being engulfed by the Sun or evaporated due to the close distance between Sun and the Earth.

 

If you treat the Sun as a supergiants like blue, bluish-white or white supergiants, they will eventually explode in a spectacular supernova or even hypernova for large stars, then if the core left behind is more than 3-4 times of solar mass, the strong gravitational force will continue to crush the neutron star which is supposed to be formed if the core is less than 3 times of solar mass and until a point know as singularity. It marks the border of Physics/Modern Physics. Currently, Stephen Hawking`s new paper suggested that the event horizon which marks the point of no-return can`t be found, so there is no black hole, instead he called it a grey hole. Because the paper is short, scientists still need further examination of our universe to confirm Hawking`s theory.

 

If you treat the sun as supergiants which are going to explode in a supernova, then the sun would actually engulf the Earth before turning into Wolf-Rayet Stars or WF Stars, which mark the moments before a supernova take place.

[swansont]

What happens to earth planet orbit, If the sun collapsed to become a black hole?

 

May be a silly question but i want the answer, please explain

 

What would happen to the gravity of the sun if it suddenly became a black hole?

[burgess]

Our sun has one solar mass and it wouldn`t evolved into supergiants. The Sun will finally evolved into a red giant and then when the He fuel runs out, a planetary nebula will take place. What is left will be just a white dwarf which finally shrinks and fade off to form a black dwarf.

 

Our Earth will be "evaporated" as the Sun`s expand due to core collapsing inwards and the Sun will eventually reaches beyond Venus orbits and maybe Earth or beyond. So, there might be a possibility of Earth either being engulfed by the Sun or evaporated due to the close distance between Sun and the Earth.

 

If you treat the Sun as a supergiants like blue, bluish-white or white supergiants, they will eventually explode in a spectacular supernova or even hypernova for large stars, then if the core left behind is more than 3-4 times of solar mass, the strong gravitational force will continue to crush the neutron star which is supposed to be formed if the core is less than 3 times of solar mass and until a point know as singularity. It marks the border of Physics/Modern Physics. Currently, Stephen Hawking`s new paper suggested that the event horizon which marks the point of no-return can`t be found, so there is no black hole, instead he called it a grey hole. Because the paper is short, scientists still need further examination of our universe to confirm Hawking`s theory.

 

If you treat the sun as supergiants which are going to explode in a supernova, then the sun would actually engulf the Earth before turning into Wolf-Rayet Stars or WF Stars, which mark the moments before a supernova take place.

Thank for your detailed explanation