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I would like to know the ratio of cosmic microwave background radiation to normal radiation in the universe. I am considering cosmic microwave background radiation to include the microwave, and any other radiation that is being emanated from near the "edge of the universe", while normal radiation is radiation emmitted by stars, nebulae, and other sources within the universe (excluding the cosmic microwave background). Since we are in a galaxy, I know that the normal radiation here far exceeds the cosmic microwave background, but I am interested in the "average" value over the universe. For example: total cosmic microwave background radation in the universe / total normal radiation in the universe.

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Measured in what way? In energy density? –  adrianmcmenamin Jul 4 at 14:44
    
Yes, energy density would probably be the best way to measure it. –  Jonathan Jul 4 at 15:23
    
What do you mean by "edge of the universe"? –  HDE 226868 Sep 9 at 1:13
    
@HDE 226868 By "edge of the universe", I am referring to the area where it took so long for the light to reach us that the universe was opaque at this location. –  Jonathan Sep 12 at 17:30

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