How Old Is the Sun?

Answer

The sun is an estimated 4.5 billion years old. According to the University of Berkeley, it is 148 degrees celcius hotter than when it was formed.
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4 Additional Answers
Ask.com Answer for: how old is the sun
The Sun's current main sequence age, determined using computer models of stellar evolution and nucleocosmochronology, is thought to be about 4.57 billion years.
The sun is middle aged and was formed about 4.5 billion years ago. It is expected to carry on just as it is right now for a few billion years.
The age of the Sun is estimated to be about 4.6 billion years old. It is said that the Sun will slowly start change, like a human does when they get older, when it reaches about 7 billion years old. You can find more information here: http://www.suntrek.org/sun-as-a-star/suns-vital-statistics/how-old-sun.shtml
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