Life Cycle of a Star

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Stars evolve from birth to death much as animals or plants do. New stars form in stellar nebulae, made of clouds of plasma, hydrogen and helium. The lifetime of a star varies according to its mass; more massive stars have shorter lifespans than average-sized stars. The dividing line between the two types is around eight times the mass of the Sun; the two types have different life cycles.


Hover over the text of the individual stages to see information about each stage.


Contributed by: Allison Jung (February 2020)
Open content licensed under CC BY-NC-SA



This Demonstration is based on an image from [1].

[1] "Life Cycle of a Star." National Schools' Observatory." (Feb 3, 2020)

This was a project for Advanced Topics in Mathematics II, 2019–2020, Torrey Pines High School, San Diego, CA.

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