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It turns out that the main sequence lifetime is a sensitive function of mass. For a star like the Sun the main-sequence stage lasts about 10,000,000,000 years, whereas a star 10 times as massive will be 1,000 to 10,000 times as bright but will only last about 20,000,000 years.
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imagine.gsfc.nasa.gov/docs/science/know_l2/stars.html
imagine.gsfc.nasa.gov/docs/science/know_l2/stars.html
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spectral class example star temperature K luminosity mass radius ... Not all of the stars fall into the main sequence. Other types include white dwarfs, long-period variables, and the supergiants. Temperatures are in Kelvins. Luminosity, mass, and radius are all relative to those of the Sun.
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www.essex1.com/people/speer/main.html
www.essex1.com/people/speer/main.html
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The analysis indicates it's similar to a red dwarf star (spectral type M6.5) that's shining by fusing hydrogen atoms in its core, like our Sun (called a main sequence star).
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www.nasa.gov/centers/goddard/news/topstory/2003/0520new...
www.nasa.gov/centers/goddard/news/topstory/2003/0520newstar.html
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consequently the Sun and other main-sequence stars must have a source of energy deep in the interior that replaces energy radiated away from their surfaces, thereby keeping the ... The average rate of energy generation for the entire Sun, which depends primarily on the p-p chain, is about 2 erg/g.s. For a star of 10M.,
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physics.gmu.edu/~jevans/astr103/CourseNotes/ECText/ch17...
physics.gmu.edu/~jevans/astr103/CourseNotes/ECText/ch17_txt.htm
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Aging of Main Sequence Star ... Chandrasekhar Limit is 1.4 x M SUN; If the mass is less than 1.4 x M SUN the electron degeneracy pressure holds up the star...
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blueox.uoregon.edu/~jimbrau/astr122/Notes/Chapter20.htm...
blueox.uoregon.edu/~jimbrau/astr122/Notes/Chapter20.html
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[Archive] Accelerated Detonation of a Main Sequence Star (like our sun) Astronomy Misc ... SpaceBanter.com > Astronomy and Astrophysics > Astronomy Misc > Accelerated Detonation of a Main Sequence Star (like our sun)
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www.spacebanter.com/q-t_13205-Accelerated-Detonation-of...
www.spacebanter.com/q-t_13205-Accelerated-Detonation-of-a-Main-Sequence-Star-like-our-sun.html
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True or false: The Sun is a main sequence star. ... Understanding the different properties of a star in the upper and lower part of the main sequence. - Consider a star at the upper part of the main sequence (label it star A) and a star in the lower part of the main sequence (label it star B). Which is: a. Larger?
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www.brainmass.com/homework-help/astronomy/general-astro...
www.brainmass.com/homework-help/astronomy/general-astronomy/6544
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A Dying Star: The Effects of the Post-Main Sequence Sun on the; Biological Sustainability of Various Solar System Objects; S1911; Objectives/Goals; This study was conducted with the primary objective of determining which Solar System object(s) would be most viable during various stages of stellar evolution.
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www.usc.edu/CSSF/Current/Projects/S1911.pdf
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Main sequence - Wikipedia, the free encyclopedia
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The main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness. These color-magnitude plots are known as Hertzsprung-Russell diagrams after t...
en.wikipedia.org/wiki/Main_sequence
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