Star - Wikipedia, the free encyclopedia
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A star is a massive, luminous ball of plasma that is held together by gravity. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth. Other stars are visible in th...
en.wikipedia.org/wiki/Star
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Once a protostar starts burning hydrogen in its core, it quickly passes through the T-Tauri stage (in a few million years) and becomes a main sequence star where its total mass determines all its structural properties.
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zebu.uoregon.edu/~js/ast122/lectures/lec14.html
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If the initial interstellar cloud in star formation has a mass ... What characteristic of a star cluster is used to determine its age? ... Just as a low-mass main sequence star runs out of fuel in its core, it actually becomes brighter. ...
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astro.gmu.edu/classes/a113/practice/PRACTICE2.HTM
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* Lower limit to star formation: core temp too low ; > Formation of brown dwarfs ; * Upper limit to star formation: photon pressure too high ; ... 10. The mass of the protostar determines its location on the main sequence. The more massive the protostar, the hotter and more luminous the resulting main-sequence star.
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www.courses.psu.edu/astro/astro010_pjm25/starbirth2.htm...
www.courses.psu.edu/astro/astro010_pjm25/starbirth2.html
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8. Family of Stars; Parallax for distance; Brightness vs. distance; Cepheid variables: mass luminosity relation -. Distance; Hertzsprung-Russell diagram; Temperature vs. Luminosity or Absolute Magnitude; Main Sequence Luminosity; ... 58. What characteristic of a star primarily determines its location on the main sequence?
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seaport.coastline.edu/OnlineCourseViewer/SectionExams.c...
seaport.coastline.edu/OnlineCourseViewer/SectionExams.cfm?SectionID=511
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Star Type. Blue Main Sequence Star. Yellow Main Sequence Star. Red Dwarf Star ... Mass: Volcanism: Tectonism: Liquid Water: Producers: Star Type: ... Star / Planet Formation. Meet the Scientists. Help. Exit. The distance a planet orbits from its star helps to determine how hot or cold the surface of the planet is. ...
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astroventure.arc.nasa.gov/DAP/DAPtext.swf
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Because all other stellar properties are set once a star's mass is known, we can say that the mass of a star at the time of formation determines its location on the main sequence.
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dev.prenhall.com/divisions/esm/app/chaissonat3/CHAISSON...
dev.prenhall.com/divisions/esm/app/chaissonat3/CHAISSON/AT317/HTML/AT31709.HTM
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Evidence of planet formation in circumstellar disks around pre-main sequence stars ... It is found that many of the physical and chemical processes that occur in low mass star formation also take place in protostellar cores forming high mass stars.
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The mass of the star at the time of formation determines its location on the main sequence. Main sequence stars range in mass from 0.1 to 20 times the mass of the Sun (with a few exceptions); Most main-sequence stars are low-mass stars, and only a small fraction are much more massive than the Sun ;
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blueox.uoregon.edu/~jimbrau/astr122/Notes/Chapter17.htm...
blueox.uoregon.edu/~jimbrau/astr122/Notes/Chapter17.html
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