![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
2 demonstrate the redshift and blueshift caused due to relative motion... | Download Scientific Diagram
![orbital motion - Time Dilation Equals Red Shift looking in or blue shift looking out - Physics Stack Exchange orbital motion - Time Dilation Equals Red Shift looking in or blue shift looking out - Physics Stack Exchange](https://i.stack.imgur.com/OSxBP.jpg)
orbital motion - Time Dilation Equals Red Shift looking in or blue shift looking out - Physics Stack Exchange
![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)