Why No Green or Purple Stars?

Green stars do not exist because there is no temperature which produces blackbody radiation of a green color without also producing red (leading to an overall yellow color), or both blue and red (leading to an overall white color).

The EM spectrum goes

radio - microwave - infrared - red - orange - yellow - green - blue - violet - ultraviolet - x-rays - gamma rays

For a star to be green, it would have to emit green light, but no light of the nearby frequencies. This doesn't happen. Purple stars are not seen because the surface temperature of stars never gets hot enough.

Here's some info about color temperature:

http://en.wikipedia.org/wiki/Color_temperature

And some info about blackbody radiation:

http://en.wikipedia.org/wiki/Black_body

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RE:

Why No Green or Purple Stars?

Red Giants, Yellow Dwarfs, Blue Giants and White Dwarfs....

Stars range in color over the entire visible spectrum and I understand that the variation is due to power or output of the star, buy why do Green Stars not occur in nature? A star of this type theoretically would be more powerful than...

Stars can appear violet-blue... but at really hot temperatures.

Red is at one end of the specturm and violet - blue at the other... that why stars can appear either/or as no other colour is interfering.... but green is in the middle so light of both wavlengths will apear white to us.