Our own sun had already spent about half of his life and will be dimmed.
VIVAnews - Age of each star is different, depending on how big the size of the star. A star like the Sun has a lifespan of about 10 billion years. The s
tar who weighs 20 times more than the Sun, only lived about 10 million years.
As quoted from Life's Little Mysteries, February 10, 2011, the star started his life as a dense cloud of gas and dust. Once stars are formed, it burns hydrogen into helium.
After the hydrogen started out on fire, the next burning phase began burning the helium into heavier elements.
If the star has a size that is not too large,
or only several times the size of the Sun, the star will eventually become a white dwarf star
called a white dwarf or normal.
If the star has a much larger size, first of all he will explode into, and then explode back out in a supernova explosion. Then, what about our Sun?
Using computer modeling technique called Stellar Evolution andNucleocosmochronology, the Sunwhich is also a star like other stars, is 4.57 billion years old. Currently, he is running about half his life in which at this time, nuclear fusion reactions in the core of the Sun convert hydrogen to helium.
Since Sun does not have enough mass to e
xplode as a supernova, within 5 billion years into the future, when hydrogen runs out hers,she willbecome a red giant star and then will shrink. (hs)