Newly formed stars are often obscured by the dense dust clouds from which they form. To see how these appear to observers on the Earth, imagine that 50 stars, each identical to our Sun, form in a spherical cloud of dust with a radius of 100 billion kilometers. Much like the atmosphere, the dust absorbs all of the light given off by the stars and radiates an equal amount of energy to the rest of the Universe. What temperature does the cloud appear to be from outside the cloud? What wavelength telescope would you need to see the dust cloud?