What Do You Think About That A 1879 Stefan's Law Be Used To Calculate Star Radius Or Temperature?

[rhertz]

Since then, variations of the Stefan Law is widely used to determine some basic properties of a star, like:
 

• Star Radius
• Star Luminosity
• Star Surface temperature
   

To calculate any given star Luminosity, Stefan's law is expressed as:

 

L = 4 π R² σ Τ ⁴

 

^{L: Luminosity (in Watts)}

^{R: Star radius}

^{T: Star's surface temperature.}

Stefan-Boltzmann Constant  σ=5.67×10⁻⁸W.m^-2K^-4

 

^{This is a variation of the original Stefan's formula, widely used to calculate any star temperature by finding the absolute luminosity}

^{based in relative comparations with proper references:}

 

j = T⁴

 

 

where j is the Iradiance or Flux Density (Watt/m^2), which is estimated by comparisons with references (like our Sun's Irradiance).

Edited June 19, 2019 by rhertz