What will happend to the sun in about 5 billion years.?

Question

A.The sun will go supernova
B.The sun will consume itself
C.The sun will turn into a red giant
D.The sun will callapse and turn into a black hole

Answer 1

I would go with C.
Our Sun is in such a stage that it will last for more than 11 billion years. The kind of star our Sun is, it will increase in size with time, there by slowly vaporizing planets since the circumference of the Sun will eventually touch the orbit of neptune. That means...mercury, venus, earth, mars, jupiter, saturn, uranus, and neptune along with dwarf planets will be vaporized. So it will turn into a red giant before eventually becoming a white dwarf.

Answer 2

The answer that Trivi is mostly incorrect. Our sun is a G2 class star. It's relatively small compared to most of the stars we can see in the sky. At about 30 light years away, it would appear as a faint star in the sky to the naked eye, hardly remarkable. More than that and you'd probably need a telescope just to see it.

Our sun will remain on the main sequence for about 10 billion years of it's life, and it's nearly 5 billion years old, middle-aged. Over the next 5 billion years, it will continue building up a helium core (from the fused hydrogen). This core will increase pressures on the hydrogen outer core, intensifying the fusion reactions occuring there, which will slowly cause the sun to get hotter and larger. Near the end of it's main sequence life in 5 billion years, this growth will accelerate to turn it into a red giant. It is believed its radius at this point will be approximately 1 AU. This means it will engulf Mercury and Venus, and maybe even Earth, though the Earth's orbit will likely have expanded to a safe radius by this time due to the sun's mass decreasing over time. Either way, Earth will ben an uninhabitable place, it's atmosphere burned away and surface scoured by the sun's intense heat.

After awhile as a red giant, it will eventually begin fusing helium in its core as the hydrogen runs out. This will be characterized by a series of expansions and contractions as the sun has a tough time reaching hydrostatic equilibrium again. This will create very high solar winds and the sun will begin shedding it outer layers into the surrounding space. Once fusion stops in its core, it will collapse into a white dwarf. It wil have only 60% of it's original mass, but compressed into a ball the size of Earth. It will still shine dimly from the remaining heat energy it contains, radiating it out into the void for billions of years before eventually becoming a black dwarf, a cold dead star. It is believed that no black dwarves exist in the universe as the universe is not old enough for any to have formed yet.

As for the original answer options given for the original question...

A) The sun is not nearly massive enough to generate a supernova. Only the largest stars out there end their lives in this spectacular fashion

B) Technically the sun will consume a decent chunk of itself in it's fusion reactions, but remember that not all mass in a fusion reaction becomes energy (in fact only a very small portion does).

C) This is essentially what will happen

D) The sun does not have enough mass to generate the gravity needed to overcome the Chandrasekhar limit and collapse beyond a white dwarf. Electron degeneracy pressure will halt it's collapse beyond that point.

Answer 3

The solar won't blow up, its not large sufficient. yet in approximately 4 billion years it is going to enhance right into a pink large. it is going to blow off assorted its ecosystem in an greater photograph voltaic wind (there's a photo voltaic wind now, yet whilst it turns right into a pink large the wind would be better). The solar will pulsate slightly as a pink large, and each pulse will expel slightly greater of its mass. finally, whilst it finally shrinks right down to a white dwarf it ought to have lost a entire of a few third of its mass. which will seem as a sphere of gas around the solar, lit up by using the photograph voltaic (it is going to look something like the ring Nebula does spectacular now). finally (in some trillion years), the white dwarf will cool down till it not shines. in the previous that, Mercury and Venus would be long previous - absorbed into the increasing solar's outer ecosystem. because of the fact the solar loses mass, the different planets will pass added out from the solar, so the Earth will probably stay to tell the tale as a planet. besides the undeniable fact that it is going to likely be baked and scorched - no life everywhere on it. None of this could influence something interior the universe, different than our very own little photograph voltaic device. submit to in ideas - there are approximately one hundred billion stars in our galaxy, and approximately one hundred billion different galaxies interior the universe (possibly greater). So one conventional G-variety star and its conventional family members of planets is an somewhat small element interior the entire universe.

Answer 4

The best answer is 'C' The sun will turn into a red giant, but only temporarily. Its final stage will be as a 'white dwarf' star with a diameter about the same as Earth. Go ahead, impress your teacher : - )

Answer 5

the sun will consume itself

Answer 6

A

Answer 7

i got a purple giant......

Answer 8

d)

Answer 9

c.