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Activity: Light from stars

To discuss the light from stars, we"ll need a common vocabulary: brightness and luminosity. Brightness is inversely proportional to distance squared. We"ll investigate black body radiation and Planck"s law and use Wien"s law to determine temperature based on peak wavelength. Stars are classified and can be plotted and interpreted on a Hertzsprung-Russell diagram. You will need to memorise the names of star types and...

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