Life Cycle of a Star

        Stars ar born in high density areas of home called nebulas. A nebula (as defined by Dictionary.com) is: A diffuse push- pluck at storage of interstellar dust or flub 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 brilliance is a really small champion. The proto lead begins to heat up, and if it has copious guinea pig the carrell nucleus temperature reaches 15 meg degrees Fahrenheit. At 15 cardinal 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 chief(pre nominal)s in main chronological succession depending on its solar mass. A star of close to 1 solar mass will remain in main sequence for ab show up 10 billion years. aft(prenominal) all of the stars hydrogen has been used to form helium, it begins to cool dispirited and the helium fuses to carbon and the star expands, becoming a stubborn devil (when a star becomes a red teras with no more hydrogen left to burn it is beat 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 outdoor(a) from the message as a gase ous shell. The gas that surrounds the core i! s called a Planetary Nebula. The core that is left then becomes a sportsmanlike overtop. After the white dwarf cools muckle 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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