1. The problem statement, all variables and given/known data Consider a hypothetical star of radius R, with density ρ that is constant, i.e. independent of radius. The star is composed of a classical, non relativistic, ideal gas of fully ionized hydrogen, Find the the temperature profile (T(r)) 2. Relevant equations dT(r)/dr = ( (-3*L(r)*k(r)*ρ(r)) / (4∏*(r^2)*4*a*c*(T(r))^3) so sorry this is written poorly 3. The attempt at a solution So what I did is try and assume which of the values on the right side are constant so I could take them outside of the integral, but I'm not sure. Please explain principles and equations fully. I really want to understand this!