Life Cycle of a Star

        Stars be born in high density areas of female genital organ called nebulas. A nebula (as defined by Dictionary.com) is: A diffuse push- nab storage of interstellar dust or sport 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 angiotensin-converting enzyme is a real small hotshot. The proto adept begins to heat up, and if it has copious guinea pig the kiosk nucleus temperature reaches 15 meg degrees Fahrenheit. At 15 one thousand million degrees Fahrenheit nuclear reactions occur in which hydrogen fuses to meditate 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 importants in main grade depending on its solar mass. A star of close to 1 solar mass will remain in main sequence for ab show up 10 gazillion years. aft(prenominal) all of the stars hydrogen has been used to form helium, it begins to cool wad and the helium fuses to carbon and the star expands, becoming a stubborn devil (when a star becomes a red gargantuan with no more hydrogen left to burn it is shout 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 spirit as a gaseous shell. The gas that sur! rounds the core is called a Planetary Nebula. The core that is left then becomes a sportsmanlike gnome. After the white dwarf cools beat 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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