What is another word for red shift?
Pronunciation: [ɹˈɛd ʃˈɪft] (IPA) 
Red shift is a term used in astronomy to describe the shift towards the red end of the spectrum in light emitted by celestial objects. This phenomenon occurs as a result of the Doppler effect, which causes the wavelength to increase as the object moves away from the observer. While red shift is the commonly used term in astronomical discussions, there are other synonyms for this phenomenon, including cosmological shift, velocity shift, and Doppler shift. All of these terms refer to the same physical process, but each emphasizes a different aspect of the phenomenon, indicating the motion of the source and the resulting effect on the wavelength of the emitted light.
