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单词 blueshift
释义
blueshift

Astronomy
  • A Doppler shift of light towards the blue end of the spectrum, caused when the emitting source is approaching the observer. See also Radial Velocity; Redshift.


Space Exploration
  • A manifestation of the Doppler effect in which an object appears bluer when it is moving towards the observer or the observer is moving towards it (blue light is of a higher frequency than other colours in the spectrum). The blue shift is the opposite of the redshift.


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