Doppler imaging

Doppler imaging is a technique used primarily in astronomy to study the surface features and motion of celestial objects, especially stars. It exploits the Doppler effect, which describes how the frequency of waves (like light or sound) changes for an observer moving relative to the source of the waves. In the context of astronomy, Doppler imaging typically involves the following: 1. **Spectroscopy**: Observations are made using spectroscopic techniques to analyze the light emitted by a star.