" 

 == Relevance of wavelength to radius of earth == 
 Is there any need for this claim: ""It is noteworthy that this record's peak emittance black-body wavelength of 6,400 kilometers is roughly the radius of Earth""? 6,400km is obviously a long wavelength for black-body radiation, but without any physical explanation of the relevance to Earth's radius, equating the two sounds rather mystical."