Incredible Black Body White Light References. When a black body is at a uniform temperature, its emission has a characteristic frequency distribution that depends on the temperature. While an ideal absorber (aka a black body) is also an ideal emitter, this does not mean it emits light at all frequencies equally (white noise).
In a nutshell, the various gases in earth's atmosphere alter the black body spectrum slightly but not insignificantly. In contrast, a white body is one with a rough surface that reflects all incident rays completely and uniformly in all directions. Web in physics and color science, the planckian locus or black body locus is the path or locus that the color of an incandescent black body would take in a particular chromaticity space as the blackbody temperature changes.
