What is the diameter of this star

Reference no: EM13296212

Stars, to a good approximation, are spherical, and emit electromagnetic radiation from a surface of emissivity e = 1. Suppose we observe that a star radiates energy at a rate of 3.1E27 W, and we determine, from its spectrum, that its surface temperature is 8,180 K. What is the diameter (in millions of km) of this star?

Reference no: EM13296212

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