If the sun were replaced by a 1-solar mass black hole, how would Earth’s orbit change?

Question

would Earth's orbit be sucked into the black hole?

Answer 1

No. The gravitational pull from that distance would be exactly the same. You would only notice a difference when you approach the point in space where the Sun's outer edge used to be - a distance of about 700,000 km from the singularity. This is a little tricky to explain, but my source does a very good job at that.

Answer 2

If one that small could exist, then:
Earth's orbit is determined by its velocity, distance, and the gravitational attraction between it and the sun. That gravitational attraction is determined by that distance and the product of its and the sun's masses.

Same masses, same gravitational attraction, same orbit.

Now, if we were much closer, say inside the orbit of Mercury, tidal forces might do some really bad things to Earth's structure, which could lead to getting torn apart. Then some of the resulting debris would lose enough energy to spiral the rest of the way in. But at our distance? No.

Answer 3

your answer is stable yet for the incorrect reason. this became defined in different solutions so i can't repeat it. the continues to be of a action picture star must be 3 photograph voltaic lots with a view to interrupt down right into a black hollow, yet there must be photograph voltaic mass sized black holes latest from the time of the great bang. in any case that is all somewhat beside the point for this question because of the fact it would not ask what could ensue if the sunlight collapsed right into a black hollow (which might create a distinctive end consequence).