Naked Eye Star Colors
Country: United Kingdom
Do stars flash different colours like blue, red, green, orange?
Good question. Stars do not "flash" these different
colors. However, stars do have real colors like the ones you
suggest. They are not obvious but subtle reddish, bluish-white, and
even greenish hues. If you look carefully at a rich field of stars
you should see some that display these colors. But do not expect them
to flash out at you. The colors are subtle.
David H. Levy
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Update: June 2012