A star is observed with a surface temperature of 3,000 K and a lumi nosity of 105 solar. What is the approximate radius of this star?

Question

Quizplus · Accepted Answer

The radius of a star can be estimated using the Stefan-Boltzmann law, which relates the star's luminosity, temperature, and radius. Given the star's luminosity is 105 times that of the Sun and its temperature is 3,000 K, the star's radius can be calculated to be significantly larger than the Sun's, approximately 100 times or 10^2 solar radii, making the closest answer 10^3 solar radii due to the immense luminosity.

A Star Is Observed with a Surface Temperature of 3,000