Have astronomers ever observed a violet shift like they have blue shifts and red shifts?

Have astronomers ever observed a violet shift like they have blue

Doppler Shift

The 6563 Å Hα line emitted by hydrogen in a star is found to be

Use Machine Learning to Estimate the Red Shift of Galaxies from

Explain the terms Hypsochromic (blue) shift and Bathochromic (red

Why Substitution Mutation Is Not Called As Frame Shift Mutation?

Using Spectra to Measure Stellar Radius, Composition, and Motion

The Big Bang: a reality or perception?

Red shift (video), Scale of the universe

What is the phase shift when light enters from denser medium to

Redshift and Distance in the Expanding Universe

Have astronomers ever observed a violet shift like they have blue

Does the red shift from distant galaxies tell us that the universe