How do you find the actual diameter of a star going from arcseconds to kilometers?
ex the supe...
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How do you find the actual diameter of a star going from arcseconds to kilometers?
ex the supergiant star betelgeuse (in the constellation orion) has a measured angular diameter of 0.044 arcsecond. its distance has been measured to be 427 light-years. what is the actual diameter of betelgeuse?
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