Chapter S3, Problem 56EAP

Part(a)

To determine

The mass of the most massive stars in the HR diagram

Given:

The radius of the most massive stars $R_G$ from the HR diagram is ${10}^3{R}_s$

  $R_s$ is the radius of the sun

  $M_s$ is the mass of the sun

Part(b)

To determine

The luminosity of the most massive stars in the HR diagram

Part(c)

To determine

The ratio of luminosity and mass.

Part(d)

To determine

The maximum amount of time the stars can last from the HR diagram