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23 February, 04:32

What are the two ways to measure brightness of a star

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  1. 23 February, 04:55
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    To do so, astronomers calculate the brightness of stars as they would appear if it were 32.6 light-years, or 10 parsecs from Earth. Another measure of brightness is luminosity, which is the power of a star - the amount of energy (light) that a star emits from its surface.
  2. 23 February, 04:55
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    I think its by magnitude and luminocity
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