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It was recentlly learned that our sun likely coalesced from the gas in a globular cluster containing some 3000 stars, probably about 10 light years across. The first million years or so of the sun's existence it shone by the light of gravitational collapse, from the heat of colliding atoms. Once the sun's core temperature reached a critical threshhold, nuclear fusion began to occur, producing the light of a "true" sun.
The sun drifted around the galaxy, about once every 220 million years, some 20 times until now. It will continue to do so for another three or four billion years, at which time it will gradually begin getting larger and hotter. As the hydrogen fuel is consumed, it will expand fairly rapidly (over about a hundred thousand years) into a red giant. It will burn that way for awhile, liberating lots of heat, and then collapse into a small bright white dwarf. As a white dwarf it will burn several billion years more, eventually fading to a brown dwarf before blackening out altogether.
Wiki User
∙ 11y ago
Wiki User
∙ 15y agoIt's thought to be about halfway through its main squence life (burned half the avalable hydrogen) ,
so it's 4.5 billion years old ... and has about 5 billion years to go (before it turns into a red-giant and swallows the inner planets.
Wiki User
∙ 13y agoThe next stage of the sun would be a red giant. It would expand to many times it's present size. It is about a million miles across. Then the fusion will cause it to expand to like a hundred million miles across or greater.
Wiki User
∙ 15y agoThe sun is about half way through its life. it has been around for 4.5 billion years and has another 5 billion years until it dies.
Wiki User
∙ 12y agoour sun is a middle aged star. It's lived about half its life.
Wiki User
∙ 14y agoThe Sun is estimated to be about 4.6 billion years old, and is expected to burn for another 5 billion years. This puts its expected lifetime at around 10 billion(10,000,000,000) years.
Wiki User
∙ 13y agoOur Sun is about half way through it's life. It is on the main sequence.
Wiki User
∙ 13y agoMain sequence
Wiki User
∙ 12y agoThe Main Sequence stage.
Wiki User
∙ 13y agoThe Sun is in the main sequence stage.
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Where in the sun's life cycle is the sun?
The Sun is approximately halfway through its main-sequence process of evolution.
Is the sun or Antares farther along in its life cycle?
The Sun is halfway through it's life whereas Antares is nearing it's end.
How does sun fit into the star life cycle?
the sun is a cool wave
What will be the next stage in the sun's life cycle?
The red giant.
Is the sun young or old?
in star life cycle terms its pretty young
Where in the sun's life cycle is the sun?
The Sun is approximately halfway through its main-sequence process of evolution.
What is the life cycle stages of our star the sun?
It is approx half-way through its 10 billion year life cycle.
Is the sun or Antares farther along in its life cycle?
The Sun is halfway through it's life whereas Antares is nearing it's end.
What part of the life cycle is the sun at now?
It is commonly understood that the sun, at 4.567 billion years is in it's mid-life, or about 1/2 way through it's life expectancy.
What is the life cycle of earths sun and where is it now in its life cycle?
middle age
How many years does the sun have left on its life cycle?
I think ur a gay. when you die the sun will end on its life cycle! :D >>>Jushki
What is the stage sun life cycle?
dubstep
How does sun fit into the star life cycle?
the sun is a cool wave
What three interconnected factors sustain life on earth?
Life on Earth is sustained through the flow of energy from the sun, the cycle of matter through the biosphere, and gravity. These factors are essential to all biotic processes.
How did oxygen form on earth?
from nuclear fusion on the surface of the sun when it went nova, but it was also formed by plant life through the calvin cycle
Does a complete life cycle have only 4 stages?
Well, evry life cycle starts with the sun. It depends. Like sun, monkey, banana, and a banana eats nothing.
What is the star life cycle of the sun?
Life cycle of a sun like star. A sun like star will start out as a nebula to a protostar to a main sequence star to a red giant and into a white dwarf and will simply fade out.
