Noun
blueshift (plural blueshifts)
(physics) A change in the wavelength of light, in which the wavelength is shorter than when it was emitted at the source.
After z is measured, the distinction between redshift and blueshift is simply a matter of whether z is positive or negative. Source: Internet
Doppler effect main Doppler effect, yellow (~575 nm wavelength) ball appears greenish (blueshift to ~565 nm wavelength) approaching observer, turns orange (redshift to ~585 nm wavelength) as it passes, and returns to yellow when motion stops. Source: Internet
However, redshift is a more common term and sometimes blueshift is referred to as negative redshift. Source: Internet
See the formula section below for some basic interpretations that follow when either a redshift or blueshift is observed. Source: Internet
Thus the velocity can be measured from the amount of redshift (or blueshift ) of the star's spectrum. Source: Internet
Thank you Blueshift, let's not close the mouths of the 17 year olds we welcomed in to the political system yesterday. Source: Internet