If the Sun became a black hole, would the orbits of planets in our Solar System be affected?

Answer 1

If the Sun's mass did not change, it would be about 2 kilometers in diameter. If the motions of the planets were not effected as they went around it, their motion away from the star would still be balanced by the attraction. There is no change in the forces, so the planets would continue to move as they already did, albeit in darkness.
However, objects moving close to the sun, gas and dust and other materials which were formerly pushed away by radiation pressure, might remain close to or fall into the black hole -- or just as likely be ejected from the gravitational hold at some high velocity. The amount of material to collect in this matter is small compared to the masses of the planets, so the change in the mass of the hole would probably not be all that much.
The hole is only a concentration of mass in our universe, it possesses no 'sucking force' to alter the path of objects around it. From far enough away, you can treat a black hole like any other object in Newtonian space.

Answer 2

Our planetary system would be gone if the sun after burning out... collapsed on itself...they would get sucked in totally.
But probably the planets would be already destroyed if the sun went nova before it started collapsing.

Some say our sun isn't big enough to turn into a black hole.

I would recommend you google "black hole, wiki" but that is a hella long article that's dang hard to understand. Someone should rewrite it for normal folks.

Answer 3

Contrary to popular myth, a black hole is not a cosmic vacuum cleaner. If our Sun was suddenly replaced with a black hole of the same mass, the earth's orbit around the Sun would be unchanged.

Answer 4

The orbits of the planets are prompted by skill of the gravitational forces of the sunlight and the different planets. because of the fact that gravitational forces are at as quickly as proportionate to the mass and inversely proportionate to the sq. of the distances between the bodies, it would basically impact the orbits if there replaced right into a transformation in ther mass of the sunlight or the area between the sunlight and the planets.

Answer 5

shouldn't be. the orbits are solely dictated by the total mass of the Sun and the respective planet.

Answer 6

yes, since we are to close and the black hole`s gravity is way more than the sun

Answer 7

Our solar system will not remain in its original form. it will totally collapse and there will be no planet left.

Answer 8

yes, we'll be all sucked inside the black hole

Answer 9

Maybe--a little.