Life+cycle+of+stars

The star in th start of its life starts as a protostar. This is such as a baby.As it grows older it goes through fusion ignited and a phase called main sequnce. This through its teenage through adulthood age. It is reaching its middle age which for the star is the red giant/super giant. As the star is about to die it reaches the age of white dwarf/ black hole.

Smaller Stars live longer, because they have less mass than the bigger stars, as a result they live longer than the larger and more heavier stars. Medium size stars live in th Main Sequence for about 50 million years, before dying out. The star will survive for billions of years in the old age phase before dying out.