Imagine you could watch a star cluster from the time of its birth to an age of 13 billion years. What you would see happening during that time?
A star's life span is much more than 10 billion years. It would pass through various stages, from nebula to ( ,perhaps, the current stage) supernova or neutron star or Black Hole.
There.appears to be a grace time of a few by, from B instant and
formation of stars.
However, the transition stages are
Our star Sun is just 4.6 billion years (by) old. It might become a red
giant by about 10th by and become black dwarf, later. I think that
Sun is not middle-ages. Its stage now is comparable to high-
spirited forties. in humans.