Radó von Kövesligethy (in Hungarian usage, Kövesligethy Radó) (1 September 1862 in Verona, then Austrian Empire – 11 October 1934 in Budapest, Hungary), was a Hungarian physicist, astronomer and geophysicist. Kövesligethy developed a spectral equation for black body radiation for the continuous spectra of celestial bodies which had the following properties: the spectral distribution of radiation depends only on the temperature, the total irradiated energy is finite, the wavelength of the intensity maximum is inversely proportional to the temperature. His work was published in 1885 in Hungarian