Dopplergram

Dopplergram

[′däp·lər‚gram]
(astronomy)
An image of the sun showing line-of-sight (approaching and receding) gas motions, obtained using a spectroheliograph that has been modified to use the Doppler effect.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.