If you were to look at this star in it's peak velocity relative to a stationary observer, you would see a pretty big shift in it's color! Say the star was our

If you were to look at this star in it's peak velocity relative to a stationary observer, you would see a pretty big shift in it's color! Say the star was our sun, with a peak frequency at ~525nm. For reference, that's a good solid green, like that of fresh wet grass. If the star were moving away from you at 0.08c, then the color would redshift down to 569nm, a nice pale lime. If the star were moving toward you, then it would blueshift up to 481nm, an ultramarine blue. You can see the colors by wavelength here: http://pages.cs.wisc.edu/~yetkin/code/wavelength_to_rgb/wavelength.html http://pages.cs.wisc.edu/~yetkin/code/wavelength_to_rgb/wave...