Stefan-Boltzmann Law

If a star was marked with L/T_eff in the Method column then its diameter was measured using the Stefan-Boltzmann Law. Stellar diameters are usually approximated using the Stefan–Boltzmann law with the star's luminosity and effective temperature. The Stefan-Boltzmann law describes how the temperature, luminosity, and volume of a star are all related in some way.

To calculate a star's diameter with the Stefan-Boltzmann law you must do the following calculation:

Square root of $((5772/T)^{4}*L)$ where $T$ represents the effective temperature in Kelvin (not Celsius) and $L$ represents the luminosity in terms greater than the Sun.