what would happen if the sun became a black hole?

Answer 1

Putting aside the fact that the Sun doesn't have the mass to become a black hole, and that if it did then it would be a very violent reaction that would vaporize Earth, lets asume you mean that suddenly it becomes one. Well, Earth would freeze and become a small ice spehere, orbitaly nothing much, the gravity would be the same and since there is no accretion disk we would spin around like usual.

Answer 2

Well, first, let me assure you that the Sun has no intention of doing any such thing. Only stars that weigh considerably more than the Sun end their lives as black holes. The Sun is going to stay roughly the way it is for another five billion years or so. Then it will go through a brief phase as a red giant star, during which time it will expand to engulf the planets Mercury and Venus, and make life quite uncomfortable on Earth (oceans boiling, atmosphere escaping, that sort of thing). After that, the Sun will end its life by becoming a boring white dwarf star. If I were you, I'd make plans to move somewhere far away before any of this happens. I also wouldn't buy any of those 8-billion-year government bonds.

But I digress. What if the Sun *did* become a black hole for some reason? The main effect is that it would get very dark and very cold around here. The Earth and the other planets would not get sucked into the black hole; they would keep on orbiting in exactly the same paths they follow right now. Why? Because the horizon of this black hole would be very small -- only about 3 kilometers -- and as we observed above, as long as you stay well outside the horizon, a black hole's gravity is no stronger than that of any other object of the same mass.

hope that helped ya lol

Answer 3

Nothing apart that it would be very cold on Earth.
The sun being a black hole (keeping the same position and the same mass) would not change anything in the gravitational pull of the sun on the planets. As black hole, an object the mass of the sun would be rather insignificant, with the dimensions of the events horizon that is barely 6 km in diameter.

Answer 4

Our sun can't become a black hole. Sorry.
Only the biggest stars become black holes when they die. The sun is a very average star, and when it starts dieing, it will turn into a red giant, than have a nova, then turn into a white dwarf and then a black dwarf, or dead star.
The biggest stars would become red SUPERgiants and have SUPERnovas, then become neutron stars, which eventually become black holes.
However, if the sun DID become a black hole...
Well, since a black hole is small, and keeps getting smaller, but doesn't disappear, and has a small field where the gravity starts pulling too hard, it would consume the solar system teeny bit by teeny bit, probably.
Of course, we'd die of heat when it's a red giant. Sorry.

Answer 5

According to cosmology a Black hole is a burned out Sun(star).
That means there isnt enough critical mass left in the Sun to carry out Nuclear fusion.
Whitout nuclear fusion light radiation would be no longer exist.
the earth would be in the dark.
The Sun would occupy space in the Universe as a black invisible mass ,but a much smaller mass having less gravity than when it started with.
The reason is that gravity field is really a Gravity force per unit mass.

Answer 6

Soundgarden would be considered prophets?

Answer 7

earth would freeze

Answer 8

then we would be introuble

Answer 9

ay

scary

dont say that!

Jesus would save us duh

=)