Imagine that the Earth is orbiting a white dwarf star, whose surface temperature is 20000 K. What is the apparent angular size of this white dwarf as viewed from Earth? (Express your answer in arcseconds
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Imagine that the Earth is orbiting a white dwarf star, whose surface temperature is 20000 K. What is the apparent angular size of this white dwarf as viewed from Earth? (Express your answer in arcseconds)
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