Whether the Sun’s mass, luminosity, radius are average.

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Chapter 12, Problem 4DQ

To determine

Whether the Sun’s mass, luminosity, radius are average.

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Using solar units, we find that a star has 4 times the luminosity of the Sun, a mass 1.25 times the mass of the Sun, and a surface temperature of 4090 K (take the Sun's surface temperature to be 5784 K for the sake of this problem). This means the star has a radius of.................... solar radii and is a .................... star (use the classification).

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