Red shift and blue shift can be used to describe/explain planets moving away/toward us. Are there 'yellow', 'orange', violet' shifts as well? Do we always observe the shift to the red/blue parts
![When looking at a spectrum of light from a star, how can we tell that the light has undergone red shift (or blue shift)? | Socratic When looking at a spectrum of light from a star, how can we tell that the light has undergone red shift (or blue shift)? | Socratic](https://useruploads.socratic.org/hrvKBpgxQSzv454vCPmQ_dopplercomp1.jpg)
When looking at a spectrum of light from a star, how can we tell that the light has undergone red shift (or blue shift)? | Socratic
![Have astronomers ever observed a violet shift like they have blue shifts and red shifts? | Science Questions with Surprising Answers Have astronomers ever observed a violet shift like they have blue shifts and red shifts? | Science Questions with Surprising Answers](https://wtamu.edu/~cbaird/sq/images/redshift.png)
Have astronomers ever observed a violet shift like they have blue shifts and red shifts? | Science Questions with Surprising Answers
![Red shift and blue shift in astronomy. Diagram of the Doppler effect, the change in the wavelength of radiation due to the motion of a source (galaxy Stock Photo - Alamy Red shift and blue shift in astronomy. Diagram of the Doppler effect, the change in the wavelength of radiation due to the motion of a source (galaxy Stock Photo - Alamy](https://c8.alamy.com/comp/2ADMEFT/red-shift-and-blue-shift-in-astronomy-diagram-of-the-doppler-effect-the-change-in-the-wavelength-of-radiation-due-to-the-motion-of-a-source-galaxy-2ADMEFT.jpg)
Red shift and blue shift in astronomy. Diagram of the Doppler effect, the change in the wavelength of radiation due to the motion of a source (galaxy Stock Photo - Alamy
How do we know if a star is redshifted/blue shifted, or if it is just intrinsically that color? - Quora
![Red-shift & Blue-shift Caused By Doppler Effect Photograph by David A. Hardy/science Photo Library - Fine Art America Red-shift & Blue-shift Caused By Doppler Effect Photograph by David A. Hardy/science Photo Library - Fine Art America](https://images.fineartamerica.com/images-medium-large-5/red-shift--blue-shift-caused-by-doppler-effect-david-a-hardyscience-photo-library.jpg)