Question

what kind of star will the sun be after it leaves the main sequence

Answer 1

The sun will become a red giant.

When the Sun becomes a red giant, its atmosphere will envelope the Earth and our planet will be consumed in a fiery death. The Sun will eventually evolve into a red supergiant as it exhausts the helium in its core. At this stage, it will have an outer envelope extending out towards Jupiter. During this brief phase of its existence, which last only a few tens of thousands of years, the Sun will lose mass in a powerful wind.

Eventually, the Sun will lose all of the mass in its envelope and leave behind a hot core of carbon imbedded in a nebula of expelled gas. Radiation from this hot core will ionize the nebula produces a striking 'planetary nebula', much like the nebulas seen around the remnants of other stars. The carbon core will eventually cool and become a white dwarf, the dense dim remnant of a once bright star. The final fate of low-mass dwarfs is unknown, except that they cease to radiate appreciably. Most likely they become burned-out cinders, or black dwarfs.

Source:

http://www.astronomytoday.com/cosmology/...

Hope I helped. :)

Answer 2

A white star. After a while stars explode and become white stars. They decrease in the amount of heat they give of and become smaller.

Answer 3

@meese Actually no. It will be a Red Giant.
https://answers.yahoo.com/question/index?qid=20090429044508AABblyh

Answer 4

Also @dschiro @~

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