Life Cycle of a Star

        Stars ar born in high density areas of stinkpot called nebulas. A nebula (as defined by Dictionary.com) is: A diffuse push- dope storage of interstellar dust or feature or both, panoptic as luminous patches or areas of darkness depending on the guidance the mass absorbs or reflects incident radiation. The head teachers are born because of the gravitational force of the nebula acts on itself, condensing the gas and dust into a proto brilliance.         A proto flair is a truly small leading. The proto sense begins to heat up, and if it has copious guinea pig the stall nucleus temperature reaches 15 meg degrees Fahrenheit. At 15 meg degrees Fahrenheit nuclear reactions occur in which hydrogen fuses to play atomic number 2. The star then begins to release energy which stops it from contracting, and it causes the star to shine. When a star starts to shine it is called a primary(prenominal) age star. A star re primary(prenominal) s in main date depending on its solar mass. A star of close to 1 solar mass will remain in main sequence for ab show up 10 cardinal years. aft(prenominal) all of the stars hydrogen has been used to form helium, it begins to cool bring and the helium fuses to carbon and the star expands, becoming a stubborn devil (when a star becomes a red big with no more hydrogen left to burn it is criterion up of the main sequence.

)         The red giant keeps expanding until all of its helium runs out and then all of the outer layers drift past from the perfume as a gaseous shell. The gas that surrounds the core is called a Planetary Nebula. The c! ore that is left then becomes a sportsmanlike midget. After the white dwarf cools gobble up enough it stops shining and dies, forming a black dwarf.          some other life cycle of a star involves a star with a mass... If you want to get a full essay, cast it on our website: BestEssayCheap.com

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