explain the life cycle of a star
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Answer:
Life Cycles of Stars. A star's life cycle is determined by its mass. ... A star's mass is determined by the amount of matter that is available in its nebula, the giant cloud of gas and dust from which it was born. Over time, the hydrogen gas in the nebula is pulled together by gravity and it begins to spin.
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Answer:
The Life cycle of a star:
A star is born once it becomes hot enough for fusion reactions to take place at its core.
Heavy stars turn into supernovae, neutron stars and black holes whereas average stars like the sun end life as a white dwarf surrounded by a disappearing planetary nebula. All stars, however, follow roughly the same basic seven-stage life cycle, starting as a gas cloud and ending as a star remnant.