Examples from the Web for doppler
On each orbit, the planets pull the star slightly, which can be detected by the Doppler effect.
Angle, strength and Doppler movement were computed to find course and distance.Planet of the Damned|Harry Harrison
And I noticed that the waves of sound were under a slight Doppler effect.
The method of detecting binary stars by means of the spectroscope is an application of Doppler's principle.Astronomy of To-day|Cecil G. Dolmage
Word Origin and History for doppler
1871, in reference to Christian Doppler (1803-1853), Austrian scientist, who in 1842 explained the effect of relative motion on waves (originally to explain color changes in binary stars); proved by musicians performing on a moving train. Doppler shift is the change of frequency resulting from the Doppler effect.