1. The problem statement, all variables and given/known data I have 3 data points of steady state temperature at 3 locations some distance away from a bulb, I need to calculate the temperature of the surface of the bulb. It would be best to assume the bulb is a hemispherical radiation source, based on the experiment set-up 2. Relevant equations q''=σ(Ts-Tsurr)4 I=E/∏ G=I∏ q=kAΔT 3. The attempt at a solution I am assuming the temperature distribution is not linear so using a line to fit the data then backing out the temp would not give an accurate result.