How does the Sun become a white dwarf?

How does the Sun become a white dwarf?

A white dwarf is what stars like the Sun become after they have exhausted their nuclear fuel. Near the end of its nuclear burning stage, this type of star expels most of its outer material, creating a planetary nebula. Only the hot core of the star remains.

How long does it take for a white dwarf to evolve?

For example, a study of white dwarfs in open star cluster M67 found many white dwarfs with temperatures hotter than about 6,000 K, but none cooler than this. A white dwarf takes about 4 billion years to cool to 6,000 K, so we can conclude that the cluster is around 4 billion years old.

How long before our Sun dies?

The Sun is about 4.6 billion years old – gauged on the age of other objects in the Solar System that formed around the same time. Based on observations of other stars, astronomers predict it will reach the end of its life in about another 10 billion years.

Will our Sun eventually become a white dwarf?

Like the vast majority of stars in our Milky Way galaxy, the sun will eventually collapse into a white dwarf, an exotic object about 200,000 times denser than Earth. “The sun itself will become a crystal white dwarf in about 10 billion years.”

Will the Sun stop burning?

For about a billion years, the sun will burn as a red giant. Then, the hydrogen in that outer core will deplete, leaving an abundance of helium. Astronomers estimate that the sun has about 7 billion to 8 billion years left before it sputters out and dies.

How did the sun turn into a white dwarf?

This life cycle occurs as the Suns fuel source (Hydrogen) will over time burn through, and through a process known as Nuclear Fusion (whereby Hydrogen and Helium interact), the Sun will expand to become a Red Giant. From there and after a period of time, it will then collapse into a smaller, dense White Dwarf.

Will the Sun become a neutron star?

Sun will never turn into a neutron star. Sun is a medium sized star. If It is possible,we should live under earth. If sun turned to neutron star the temperature on earth would turn to -125°C.

What would happen if the Sun was a white dwarf?

If the Sun were suddenly replaced by a white dwarf of lower mass, with no fusion taking place, the Earth-Moon system’s orbit would expand and became more elliptical, and the Earth would become much colder.

How will the Sun end its life?

Once our own Sun has consumed all the hydrogen fuel in its core, it too will reach the end of its life. Astronomers estimate this to be a short 7 billion years from now. For a few million years, it will expand into a red giant, puffing away its outer layers.