| Share
 

blue shift

blue shift or blueshift, in astronomy, the systematic displacement of individual lines in the spectrum of a celestial object toward the blue, or shorter wavelength, end of the visible spectrum. The amount of displacement is a function of the object's relative velocity toward the observer. Most observed blue shifts are the result of the Doppler effect. The blue shift is the opposite of the red shift. Blue shifted celestial bodies are quite rare. Of the billions of known galaxies, only about 100, including the Andromeda galaxy, are blue shifted.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

More on blue shift from Infoplease:

  • blueshift: meaning and definitions - blueshift: Definition and Pronunciation
  • radial velocity - radial velocity radial velocity, in astronomy, the speed with which a star moves toward or away ...
  • red shift - red shift red shift or redshift,in astronomy, the systematic displacement of individual lines in ...
  • quasar - quasar quasar , one of a class of blue celestial objects having the appearance of stars when viewed ...
  • Doppler effect - Doppler effect Doppler effect, change in the wavelength (or frequency) of energy in the form of ...

See more Encyclopedia articles on: Astronomy: General


Premium Partner Content
HighBeam Research
Documents Images and Maps Reference
(from Newspapers, Magazines, Journals, Newswires, Transcripts and Books)

Research our extensive archive of more than 80 million articles from 6,500 publications.

Additional search results provided by HighBeam Research, LLC. © Copyright 2005. All rights reserved.

24 X 7

Private Tutor

Click Here for Details
24 x 7 Tutor Availability
Unlimited Online Tutoring
1-on-1 Tutoring