1. Why does the luminosity of a star depend on both its radius and its temperature? 2. How can… 1 answer below »

1. Why does the luminosity of a star depend on both its radius and its temperature? 2. How can you be sure that giant stars really are larger than main-sequence stars? 3. What evidence shows that white dwarfs must be very small? 4. What observations would you make to classify a star according to its luminosity? Why does that method work?  

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