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I know the apparent brightness of a main sequence star and intensity v. wavelength. How do I find distance from earth, luminosity, mass?

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  • I know the apparent brightness of a main sequence star and intensity v. wavelength. How do I find distance from earth, luminosity, mass?


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... do not reach the surface of the Earth. ... the star's apparent brightness and distance. ... the main sequence. Increased luminosity at ...
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Positive: 84 %
the apparent brightness =luminosity /4pie x the distance square. calculate a star's luminosity if we know its distance. ... Main sequence star properties.
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Positive: 81 %

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Intensity (apparent brightness) ~ luminosity (distance)2. Lifetime of a star ~ mass ... -- V = main sequence-- The sun is a G2V star, ...
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... A star's absolute magnitude is its apparent brightness as ... and find much more yellow intensity ... the luminosity of the main sequence ...
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A. the Earth moves in space. ... The smallest mass that a main sequence star can have is about 0.08 ... The luminosity of a star is . A. its apparent ...
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