What Phase Of The Life Cycle Of A Star Is Near Its End?
Well this is all about the life of a star: Where are Stars Born? Astronomers believe that molecular clouds, dense clouds of gas located primarily in the spiral arms of galaxies are the birthplace of stars. Dense regions in the clouds collapse and form “protostars”. Initially, the gravitational energy of the collapsing star is the source of its energy. Once the star contracts enough that its central core can burn hydrogen to helium, it becomes a “main sequence” star. Main Sequence Stars Main sequence stars are stars, like our Sun, that fuse hydrogen atoms together to make helium atoms in their cores. For a given chemical composition and stellar age, a stars’ luminosity, the total energy radiated by the star per unit time, depends only on its mass. Stars that are ten times more massive than the Sun are over a thousand times more luminous than the Sun. However, we should not be too embarrassed by the Sun’s low luminosity: It is ten times brighter than a star half its mass. The more massiv
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- How to use the Life Cycle of a Star section of our curriculum web: The life cycle of a star section seeks to ask the students, Can you describe the life cycle of a star and predict the next likely stage of the Sun?
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- What Phase Of The Life Cycle Of A Star Is Near Its End?
