when will the sun burn out?

Answer 1

The sun is a G2 type main sequence star,(which fuses Hydrogen into Helium) it will remain on the main sequence another 5 to 5.5 billion years, upon which it will enter into being a Red Giant(this means it will burn Helium into Carbon and Oxygen at its core) for another 2 million years. The star will then after that eventually eject its outer layers to become a White Dwarf star that could take millions or perhaps billions more years to completely cool off so that it is invisible to our current technology. However, as a White Dwarf it will not be fusing any elements, simply cooling what is left of a Carbon/Oxygen core. Therefore, the star will burn out at around 10 billion years of age. The sun is currently 4.5 billion years old and should live another few billion years give or take a million or so years. It should be noted that the sun when it enters into its Red Giant phase will expand outward to about 1 AU in diameter which will boil away the oceans, and kill any living thing left on Earth. Earth will become a planet as scroched as Mercury from the proximity to the star.

Answer 2

Okay, the answer depends on when you consider the sun to be "burned out." In about 5 billion years, the sun will expand into a red giant star as its nuclear fuel becomes depleted. After this phase, the outer layers of the Sun will continue to expand and will drift off into space, forming a planetary nebula.

Most of its mass will go to the nebula. The remaining Sun will cool and shrink; it will eventually be only a few thousand miles in diameter.

The star is now a white dwarf, a faint stable star with no nuclear fuel. It radiates its left-over heat for billions of years. When its heat is all dispersed, it will be a cold, dark black dwarf - essentially a dead star.

So, if you're asking when the Sun will change to a red giant star, then the answer is about 4-5 billion years. If, though, you're asking when the Sun will turn into a completely dark ball of compressed carbon, then the answer is somewhere along the lines of 10's of billions of years.

Answer 3

it will go out in about 3 to 4 billion years but well be gone in at least 2 because the sunn will start to get very large engulf al the planets up to at least earth and slowly get smaller until it eventually becomes a white dwarf which will then becoma a black dwarf. it is not big enought o cause a supernova or a black hole.

Answer 4

In about 5 billion years. It's reached about the halfway point right now.

Answer 5

it will soon burn out in a million years. On the computer, i watched a video that told the anwer.

Answer 6

Not for another 2 billion years or so.

Answer 7

Not for a long, long time. Thousands of millions of years from now at least.

Answer 8

about 4.5 billion years from now, the sun will explode and destroy the entire solar sysytem

Answer 9

about an hour ago we just dont know it yet