Definition, Meaning & Synonyms
blueshift
noun
/ˈbluːʃɪft/
Definition
A change in the wavelength of light toward the blue end of the spectrum, indicating that an object is moving closer to the observer.
Examples
- The light from the star showed a noticeable blueshift, suggesting it was moving towards Earth.
- Scientists used blueshift measurements to determine the speed at which the galaxy is approaching.
Meaning
Blueshift is commonly observed in astronomy where it refers to the increase in the frequency of light from an object that is approaching us.
Synonyms
- compression
- high-frequency shift
