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Star actually have colors
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Don't think this is true. I didn't find any good sources. Wikipedia mainly talks about sunlight like it arrives down here. But if you google 'sun spectrum' the images that show up look more like the peak is in the blue range.
Also mind your eyes aren't perfect measuring devices. Their sensitivity also isn't linear. For example we're more sensitive to green light if I remember correctly. Because of evolution and lots of things in nature are green.
http://solar-center.stanford.edu/SID/activities/GreenSun.html
Eye sensitivity comment is good point too, I didn't think of that.
I don't quite get why they say 'the Sun's visible output peaks in the green'. And immediately follow that up with a diagram where the peak is somewhere between blue and cyan... Or are my eyes off?
What they're really saying is that the dominant wavelength our sun emits is around 500 nm. Which by definition is green light. Astronomers also call everything heavier than helium a metal, which isn't true but that's how they work.
Yea I don't really get it either. My physics is not particularly strong though.
The 2nd image, to me, seems to show that green has a wider amount of emitted green light:
http://solar-center.stanford.edu/SID/activities/images/solar_spectrum_composite.jpg
I hope I don't sound too argumentative, because I really don't actually care too much about the exact color of sunlight. But I think this is a diagram from earth's perspective. It has these dents in the longer wavelengths where certain frequencies get absorbed by elements it traveled through, and the UV is filtered out. Both indicators it went through the atmosphere.