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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As luminosity goes up, we see that stars must be larger and larger or ... and a luminosity class V star (yielding where it lies on the main sequence). ...
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www.uwgb.edu/yingsta/Astro/Class%2019%20notes.doc
www.uwgb.edu/yingsta/Astro/Class%2019%20notes.doc
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The clump at upper right are stars with much lower surface gravities: red giants. ... at the expense of much larger uncertainties in luminosity, ...
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spiff.rit.edu/classes/phys440/lectures/lumclass/lumclas...
spiff.rit.edu/classes/phys440/lectures/lumclass/lumclass.html
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The spectrum of most stars is a continuum cut by dark bands. The dark bands are absorption lines, created when cool gas above a star's photosphere absorb the starlight from the photosphere. ... A larger star therefore couples a larger photosphere area to a lower density than does a smaller star of the same spectral type,
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www.astrophysicsspectator.com/topics/observation/Stella...
www.astrophysicsspectator.com/topics/observation/StellarTypes.html
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www.torontostar.com/
www.torontostar.com/
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Bolometric Magnitudes and Stellar Luminosity ... Each of the seven spectral classes that form the spectral classification scheme is divided into 10 parts, known as spectral types, by assigning a number from 0 to 9 to the spectral class. The lower the number in the spectral type the hotter is the star's surface temperature.
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physics.gmu.edu/astr103/CourseNotes/Text/Lec21_starRadi...
physics.gmu.edu/astr103/CourseNotes/Text/Lec21_starRadiation.htm
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Because when you think about it, humanity’s impact on global climate is nothing compared to nature. The Sun, primarily, then the oceans, the atmosphere, and even our position in the galaxy all play much larger roles than man-made carbon emissions. I’m not supporting actual (i.e. ... The ship is the Champion Star.
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lonestartimes.com/
lonestartimes.com/
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First, you would divide the radius of the larger star by the radius of the smaller star. Then, ... A complete MK designation thus includes symbols for luminosity class and spectral type. For example, the complete designation for the sun is G2V. Alpha Centauri A is also a G2V star, and Rigel's designation is B8Ia.
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www.nasa.gov/worldbook/star_worldbook.html
www.nasa.gov/worldbook/star_worldbook.html
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www.dailystarcalendar.com/
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