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Cluster after 3 Billion years. Stars that are just slighty more massive than the sun are now leaving the main sequence. |
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Cluster after 10 Billion years. If the Sun were in this cluster, it would now have run out of fuel and begin to leave the main sequence.. If it hasn't already, life as we know it on earth has come to an end. Stars at the bottom of the main sequence, those with a fraction of the mass of the Sun, will live on and on and on and on and on and on and on..... for thousands of billions of years. |