Have astronomers ever observed a violet shift like they have blue

R.I.P. Expanding Universe (b. 1930, d. 2012)

How astronomers analyze images : r/space

天文学家是否观察过“紫移”，它和蓝移有什么联系- 知乎

Radiation/Astronomy - Wikiversity

5.6 The Doppler Effect – Astronomy

Redshift and Distance in the Expanding Universe

Ahh… petah? : r/PeterExplainsTheJoke

Have astronomers ever observed a violet shift like they have blue

Solved] Spectral Patterns and Stars The following shows the

天文学家曾观测到红移和蓝移，那么是否存在可观测的

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

Have astronomers ever observed a violet shift like they have blue

/images/FAST-Catches-a-Real-Pulse

Describe three Demographic shifts and explain how each Shift