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Stars Life Cycle

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Stars Life Cycle
Stars are born of gas and dust and have a life cycle based on their original mass. The two different life cycles of stars are low mass stars and high mass stars. The low mass stars start in the main sequence, and giant star, then white dwarf. High mass also begin in main sequence, then supergiant, supernova, and then black hole. Stars are classified by size, luminosity (brightness), and temperature. There are three types of galaxies, spiral, elliptical, and irregular. A spiral galaxy is what we live in. An elliptical galaxy is the oldest of all. Irregular galaxies are the youngest. Gravity is the the force the binds all of the objects in the sky together. Our Sun creates heat and energy by nuclear FUSION in hydrogen. My address is 8725 fairport
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