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

Study Points Describe an example of the Doppler Effect that

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

Does the cosmic background in front of you blueshift if you move

Home - Ask an Astronomer

Explain shifting cultivation

Red shift (video), Scale of the universe

The Hubble Diagram - Redshifts

天文学家是否观察过“紫移”，它和蓝移有什么联系- 知乎

How do astronomers tell the difference between a cooler, red star

Discovery of Hubble hydrogen spectrum cosmology explaining what is

Hubble Space Telescope 2018-2015 - eoPortal

Describe three Demographic shifts and explain how each Shift