Problem 2. Sunspots If a sunspot is 30% dimmer than the photospheric material surrounding it, what is its temperature? (HINT: Use the Stefan-Boltzmann law)
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Problem 2. Sunspots
If a sunspot is 30% dimmer than the photospheric material surrounding it, what is its temperature? (HINT: Use the Stefan-Boltzmann law)
Low Mass Stars
Problem 3. Density of white dwarf stars (Palen, et. al., 3rd Edition, Chapter 12, problems 45)
What radius would give the Earth a density equal to that of a white dwarf? (white dwarf density = 109 kg/m3)
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