Recent content by bvbellomo

I think I figured this out. Intuitively, I understand the function I am integrating is really per nanometer of wavelength, but using SI units, my function is actually watts / meter (of wavelength) / square meter (of area) / steradian.

Thanks, but I am still confused. Am I correct that I have 23472815351083 watts / square meter / steradian? Googling a graph of the sun's output, I can see the correct answer for the question as I worded it is close to 1.6 watts / square meter of 400nm light. Which puts me off by a factor of...

Homework Statement Using Planck's law, calculate the spectral radiance of 400nm sunlight arriving at earth. Assume 1/3600 steradians of view and 5800 K of temperature. Homework Equations Planck's law The Attempt at a Solution I am not the best at typing formulas. Lets...