The sun is known to emit ~63 Mega Watts per meter squared from its photosphere. But what is the heat flux inside this emissive photosphere? Heat flux formula: q = k*ΔT/L q = k * (6600-4400 Kelvin) / (500,000 meters) What is the thermal conductivity (k) value of hydrogen at these temperatures? [1] This isContinue reading “Heat flux in the Sun”