Noun
(astronomy) a shift in the spectra of very distant galaxies toward longer wavelengths (toward the red end of the spectrum); generally interpreted as evidence that the universe is expanding
Source: WordNetSome calibrations are required to compensate for the gradual change in properties or different frequencies of abnormal luminosity supernovae at high red shift, and for small variations in brightness identified by light curve shape or spectrum. Source: Internet
Now this radiation has undergone enough cosmological red shift to put it into the microwave region of the spectrum for observers moving slowly (compared to the speed of light) with respect to the cosmos. Source: Internet
Secondly, the red shift of the spectral lines would be so great that the spectrum would be shifted out of existence. Source: Internet
The shifting of spectral lines can be used to measure the Doppler shift ( red shift or blue shift ) of distant objects. Source: Internet