Mysteries HR

Mysteries HR - However there is no correlation between...

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4/17/08 6:46 PM PHYS10102s08 Mysteries of the Sky - WebCT 4.1.5 Page 1 of 1 HR diagrams Part I: The apparent magnitude is how bright a star looks when we walk outside and see it, whereas the absolute magnitude is a measure of the star's luminosity, or how much light it's actually putting out. A star's temperature is given by its spectral class, with bluer stars being hotter than redder stars. Part II: We know from experience that there is indeed a correlation between height and weight.
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Unformatted text preview: However, there is no correlation between height and IQ. (Luckily!) Part III: We should see something similar to the main sequence, but not necessarily any generalizations about stars close to us. Part V: From a careful reading of the boxed paragraphs on page 176, we know that for two stars with the same luminosity but vastly different temperatures, the cooler one must be quite large. For two stars with the same temperature, the brighter one must be larger....
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